C
SECTION C — CHEMISTRY; METALLURGY
 C

Note(s)

  1. In section C, the definitions of groups of chemical elements are as follows:

    Alkali metals: Li, Na, K, Rb, Cs, Fr

    Alkaline earth metals: Ca, Sr, Ba, Ra

    Lanthanides: elements with atomic numbers 57 to 71 inclusive

    Rare earths: Sc, Y, Lanthanides

    Actinides: elements with atomic numbers 89 to 103 inclusive

    Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W

    Halogens: F, Cl, Br, I, At

    Noble gases: He, Ne, Ar, Kr, Xe, Rn

    Platinum group: Os, Ir, Pt, Ru, Rh, Pd

    Noble metals: Ag, Au, Platinum group

    Light metals: alkali metals, alkaline earth metals, Be, Al, Mg

    Heavy metals: metals other than light metals

    Iron group: Fe, Co, Ni

    Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens

    Metals: elements other than non-metals

    Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

  2. Section C covers :
    1. pure chemistry, which covers inorganic compounds, organic compounds, macromolecular compounds, and their methods of preparation;
    2. applied chemistry, which covers compositions containing the above compounds, such as: glass, ceramics, fertilisers, plastics compositions, paints, products of the petroleum industry. It also covers certain compositions on account of their having particular properties rendering them suitable for certain purposes, as in the case of explosives, dyestuffs, adhesives, lubricants, and detergents;
    3. certain marginal industries, such as the manufacture of coke and of solid or gaseous fuels, the production and refining of oils, fats and waxes, the fermentation industry (e.g., brewing and wine-making), the sugar industry;
    4. certain operations or treatments, which are either purely mechanical, e.g., the mechanical treatment of leather and skins, or partly mechanical, e.g., the treatment of water or the prevention of corrosion in general;
    5. metallurgy, ferrous or non-ferrous alloys.
  3. In all sections of the IPC, in the absence of an indication to the contrary, the Periodic System of chemical elements referred to is the one with 8 groups as represented in the table below. For example, group C07F 3/00 "Compounds containing elements of the 2nd Group of the Periodic System" refers to the elements of columns IIa and IIb. [2009.01]

    1. In the case of operations, treatments, products or articles having both a chemical and a non-chemical part or aspect, the general rule is that the chemical part or aspect is covered by section C.
    2. In some of these cases, the chemical part or aspect brings with it a non-chemical one, even though purely mechanical, because this latter aspect either is essential to the operation or treatment or constitutes an important element thereof. It has seemed, in fact, more logical not to dissociate the different parts or aspects of a coherent whole. This is the case for applied chemistry and for the industries, operations and treatments mentioned in Notes (1)(c), (d) and (e). For example, furnaces peculiar to the manufacture of glass are covered by class C03 and not by class F27.
    3. There are, however, some exceptions in which the mechanical (or non-chemical) aspect carries with it the chemical aspect, for example:
    4. In still other cases, the pure chemical aspect is covered by section C and the applied chemical aspect by another section, such as A, B or F, e.g., the use of a substance or composition for:
    5. When the chemical and mechanical aspects are so closely interlocked that a neat and simple division is not possible, or when certain mechanical processes follow as a natural or logical continuation of a chemical treatment, section C may cover, in addition to the chemical aspect, a part only of the mechanical aspect, e.g., after-treatment of artificial stone, covered by class C04. In this latter case, a note or a reference is usually given to make the position clear, even if sometimes the division is rather arbitrary.
  
CHEMISTRY
 C07
ORGANIC CHEMISTRY (such compounds as the oxides, sulfides, or oxysulfides of carbon, cyanogen, phosgene, hydrocyanic acid or salts thereof C01; products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds C01B 33/00; macromolecular compounds C08; dyes C09; fermentation products C12; fermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture C12P; production of organic compounds by electrolysis or electrophoresis C25B 3/00, C25B 7/00)  [2]
 C07

Note(s)

  1. In this class, the following term is used with the meaning indicated:
    • "preparation" covers purification, separation, stabilisation or use of additives, unless a separate place is provided therefor. [4]
  2. Biocidal, pest repellant, pest attractant or plant growth regulatory activity of compounds or preparations is further classified in subclass A01P[8]
  3. In subclasses C07C-C07K and within each of theses subclasses, in the absence of an indication to the contrary, and with the exception referred to below, a compound is classified in the last appropriate place. For example, 2-butyl-pyridine, which contains an acyclic chain and a heterocyclic ring, is classified only as a heterocyclic compound, in subclass C07D. In general, and in the absence of an indication to the contrary (such as groups C07C 59/00), the terms "acyclic" and "aliphatic" are used to describe compounds in which there is no ring; and, if a ring were present, the compound would be taken by the "last place" rule to a later group for cycloaliphatic or aromatic compounds, if such a group exists. Where a compound or an entire group of compounds exists in tautomeric forms, it is classified as though existing in the form which is classified last in the system, unless the other form is specifically mentioned earlier in the system.
  4. Chemical compounds and their preparation are classified in the groups for the type of compound prepared. The processes of preparation are also classified in the groups for the types of reaction employed, if of interest. General processes for the preparation of a class of compounds falling into more than one main group are classified in the groups for the processes employed, when such groups exist. The compounds prepared are also classified in the groups for the types of compound prepared, if of interest.
  5. In this class, in the absence of an indication to the contrary, the compounds containing carboxyl or thiocarboxyl groups are classified as the relevant carboxylic or thiocarboxylic acids, unless the "last place rule" (see Note (3), above) dictates otherwise; a carboxyl group being a carbon atom having three bonds, and no more than three, to hetero atoms, other than nitrogen atoms of nitro or nitroso groups, with at least one multiple bond to the same hetero atom and a thiocarboxyl group being a carboxyl group having at least one bond to a sulfur atom, e.g. amides or nitriles of carboxylic acids, are classified with the corresponding acids. [5]
  6. Salts of a compound, unless specifically provided for, are classified as that compound, e.g. aniline hydrochloride is classified as containing carbon, hydrogen and nitrogen only (in group C07C 211/00), sodium malonate is classified as malonic acid (in C07C 55/00), and a mercaptide is classified as the mercaptan. Metal chelates are dealt with in the same way. Similarly, metal alcoholates and metal phenates are classified in subclass C07C and not in subclass C07F, the alcoholates in group C07C 31/00 and the phenates as the corresponding phenols in group C07C 39/00. Salts, adducts or complexes formed between two or more organic compounds are classified according to all compounds forming the salts, adducts or complexes. [2]
 C07C
ACYCLIC OR CARBOCYCLIC COMPOUNDS (preparation of macromolecular compounds C08F; production of organic compounds by electrolysis or electrophoresis C25B 3/00, C25B 7/00)
 C07C

Note(s)

  1. In this subclass, the following terms or expressions are used with the meanings indicated:
    • "bridged" means the presence of at least one fusion other than ortho, peri or spiro;
    • two rings are "condensed" if they share at least one ring member, i.e. "spiro" and "bridged" are considered as condensed;
    • "condensed ring system" is a ring system in which all rings are condensed among themselves;
    • "number of rings" in a condensed ring system equals the number of scissions necessary to convert the ring system into one acyclic chain;
    • "quinones" are compounds derived from compounds containing a six-membered aromatic ring or a system comprising six-membered aromatic rings (which system may be condensed or not condensed) by replacing two or four CH groups of the six-membered aromatic rings by  C=O groups, and by removing one or two carbon-to-carbon double bonds, respectively, and rearranging the remaining carbon-to-carbon double bonds to give a ring or ring system with alternating double bonds, including the carbon-to-oxygen bonds; this means that acenaphthenequinone or camphorquinone are not considered as quinones. [5]
  2. Attention is drawn to Note (3) after class C07, which defines the last place priority rule applied in the range of subclasses C07C-C07K and within these subclasses. [8]
  3. Therapeutic activity of compounds is further classified in subclass A61P[7]
  4. When classifying in this subclass, classification is also made in group B01D 15/08insofar as subject matter of general interest relating to chromatography is concerned. [8]
  5. In this subclass, in the absence of an indication to the contrary, a process is classified in the last appropriate place. [3]
  6. In this subclass, in the absence of an indication to the contrary, "quaternary ammonium compounds" are classified with the corresponding "non-quaternised nitrogen compounds". [5]
  7. For the classification of compounds in groups C07C 1/00-C07C 71/00and C07C 401/00-C07C 409/00:
    • a compound is classified considering the molecule as a whole (rule of the "whole molecule approach");
    • a compound is considered to be saturated if it does not contain carbon atoms bound to each other by multiple bonds;
    • a compound is considered to be unsaturated if it contains carbon atoms bound to each other by multiple bonds, which includes a six-membered aromatic ring,
    unless otherwise specified or implicitly derivable from the subdivision, as in group C07C 69/00.
  8. For the classification of compounds in groups C07C 201/00-C07C 395/00, i.e. after the functional group has been determined according to the "last place rule", a compound is classified according to the following principles:
    • compounds are classified in accordance with the nature of the carbon atom to which the functional group is attached;
    • a carbon skeleton is a carbon atom, other than a carbon atom of a carboxyl group, or a chain of carbon atoms bound to each other; a carbon skeleton is considered to be terminated by every bond to an element other than carbon or to a carbon atom of a carboxyl group;
    • when the molecule contains several functional groups, only functional groups linked to the same carbon skeleton as the one first determined are considered;
    • a carbon skeleton is considered to be saturated if it does not contain carbon atoms bound to each other by multiple bonds;
    • a carbon skeleton is considered to be unsaturated if it contains carbon atoms bound to each other by multiple bonds, which includes a six-membered aromatic ring. [5]
 C07C
Subclass index
COMPOUNDS CONTAINING CARBON AND HYDROGEN ONLY
Preparation 1/00, 2/00, 4/00, 5/00, 6/00
Purification, separation, stabilisation 7/00
Compounds
aliphatic 9/00, 11/00
cycloaliphatic, aromatic 13/00, 15/00
COMPOUNDS CONTAINING CARBON AND HALOGENS, WITH OR WITHOUT HYDROGEN
Preparation 17/00
Compounds
aliphatic 19/00, 21/00
cycloaliphatic, aromatic 22/00, 23/00, 25/00
COMPOUNDS CONTAINING CARBON AND OXYGEN, WITH OR WITHOUT HYDROGEN OR HALOGENS
Preparation
simultaneous production of more than one class of oxygen- containing compounds 27/00
of alcohols; of phenols 29/00; 37/00
of ethers or acetals; of oxo compounds 41/00; 45/00
of quinones 46/00
of carboxylic acids, their salts or anhydrides 51/00
of esters of carboxylic acids 67/00
of esters of carbonic or haloformic acids 68/00
Compounds
with OH group(s): aliphatically bound 31/00, 33/00
cycloaliphatically bound 35/00
with OH group(s) aromatically bound 39/00
Ethers, acetals, orthoesters; aldehydes; ketones 43/00; 47/00; 49/00
Quinones 50/00
carboxylic acids
acyclic 53/00, 55/00, 57/00, 59/00
cyclic 61/00, 62/00, 63/00, 65/00, 66/00
Esters 69/00, 71/00
COMPOUNDS CONTAINING CARBON AND NITROGEN, WITH OR WITHOUT HYDROGEN, HALOGENS, OR OXYGEN
Preparation
of amines 209/00
of hydroxy amines, aminoethers, or aminoesters 213/00
of aminoaldehydes, aminoketones, aminoquinones 221/00
of aminocarboxylic acids 227/00
of amides of carboxylic acids 231/00
of nitriles of carboxylic acids 253/00
of derivatives of hydrazine 241/00
of compounds containing carbon- to-nitrogen double bonds, e.g. imines, hydrazones, isocyanates 249/00, 263/00
of derivatives of carbamic acids 269/00
of urea or derivatives 273/00
of guanidines or derivatives 277/00
of nitro or nitroso compounds, or esters of nitric or nitrous acids 201/00
Compounds
having nitrogen bound to carbon or to carbon and hydrogen
Amines 211/00
Hydroxy amines; Aminoethers; Aminoesters 215/00, 217/00, 219/00
Aminoaldehydes, aminoketones, aminoquinones 223/00, 225/00
Amino carboxylic acids 229/00
Amides of carboxylic acids 233/00, 235/00, 237/00
Compounds containing one or more carbon-to-nitrogen double bonds, e.g. imines 251/00
Nitriles of carboxylic acids 255/00
Amidines, imino-ethers 257/00
Hydroxamic acids 259/00
Derivatives of cyanic or isocyanic acid 261/00, 265/00
Carbodiimides 267/00
Carbamic acids 271/00
Ureas 275/00
Guanidines 279/00
having nitrogen bound to halogens 239/00
having nitrogen bound to oxygen
Nitro or nitroso compounds 205/00, 207/00
Nitrites or nitrates 203/00
Hydroxylamines 239/00
Oximes 251/00
having nitrogen bound to another nitrogen
Hydrazines, hydrazides 243/00
Semicarbazates, semicarbazides 281/00
Azo compounds, diazo compounds 245/00
Hydrazones, hydrazidines 251/00, 257/00
Semicarbazones 281/00
N-nitro or N-nitroso compounds 243/00
containing chains of three nitrogen atoms bound together
Triazenes 245/00
Azides 247/00
Other compounds containing nitrogen 291/00
COMPOUNDS CONTAINING CARBON, TOGETHER WITH SULFUR, SELENIUM, OR TELLURIUM, WITH OR WITHOUT HYDROGEN, HALOGENS, OXYGEN, OR NITROGEN
Preparation
of derivatives of sulfuric or sulfonic acids 303/00
of mercaptans, thiophenols, sulfides, or polysulfides 319/00
of sulfones or sulfoxides 315/00
Compounds
having sulfur bound to oxygen
Esters of sulfurous or sulfuric acids 301/00, 305/00
Sulfonic acids or derivatives 309/00
Sulfenic or sulfinic acids or derivatives 313/00
Sulfones, sulfoxides 317/00
having sulfur bound to carbon
Mercaptans, thiophenols, sulfides or polysulfides 321/00, 323/00
Thioaldehydes, thioketones 325/00
Thiocarboxylic acids or derivatives 327/00
Thiocarbonic acids or derivatives 329/00
Thiocyanates, isothiocyanates 331/00
Thiocarbamic acids or derivatives 333/00
Thioureas 335/00
Thiosemicarbazides or thiosemicarbazones 337/00
having sulfur bound to nitrogen
Sulfonamides 311/00
Sulfenamides, sulfinamides, sulfenylcarbamates or sulfenylureas 313/00
Amides of sulfuric acids 307/00
Other compounds containing sulfur 381/00
Compounds containing selenium 391/00
Compounds containing tellurium 395/00
IRRADIATION PRODUCTS OF CHOLESTEROL 401/00
DERIVATIVES OF CYCLOHEXANE OR OF A CYCLOHEXENE HAVING AN UNSATURATED SIDE-CHAIN WITH AT LEAST FOUR CARBON ATOMS 403/00
PROSTAGLANDINS OR DERIVATIVES 405/00
PEROXIDES; PEROXYACIDS
Preparation 407/00
Compounds 409/00
 C07C 1/00 - 
C07C 15/00
Hydrocarbons  [3]
P:1120 C07C 1/00
Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
P:1110 C07C 2/00
Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms  [3]
P:1100 C07C 4/00
Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms  [3]
P:1090 C07C 5/00
Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
P:1080 C07C 6/00
Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions  [3]
P:1070 C07C 7/00
Purification, separation or stabilisation of hydrocarbons; Use of additives  [5]
P:1060 C07C 9/00
Acyclic saturated hydrocarbons (methane production by treatment of sewage C02F 11/04)
P:1050 C07C 11/00
Acyclic unsaturated hydrocarbons (production of acetylene gas by wet methods C10H)
P:1040 C07C 13/00
Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
P:1030 C07C 15/00
Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic part  [2]
 C07C 17/00 - 
C07C 25/00
Compounds containing carbon and halogens with or without hydrogen
P:1020 C07C 17/00
Preparation of halogenated hydrocarbons
P:1010 C07C 19/00
Acyclic saturated compounds containing halogen atoms  [5]
P:1000 C07C 21/00
Acyclic unsaturated compounds containing halogen atoms  [5]
P:990 C07C 22/00
Cyclic compounds containing halogen atoms bound to an acyclic carbon atom  [5]
P:980 C07C 23/00
Compounds containing at least one halogen atom bound to a ring other than a six-membered aromatic ring
P:970 C07C 25/00
Compounds containing at least one halogen atom bound to a six-membered aromatic ring
 C07C 27/00 - 
C07C 71/00
Compounds containing carbon and oxygen, with or without hydrogen or halogens  [2]
P:960 C07C 27/00
Processes involving the simultaneous production of more than one class of oxygen-containing compounds (by reduction of –CHO groups C07C 29/00)
P:950 C07C 29/00
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring (by hydrolysis or alcoholysis of esters of organic acids C07C 27/00)
P:940 C07C 31/00
Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms (titanium or zirconium alcoholates C07F 7/00)
P:930 C07C 33/00
Unsaturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
 C07C 33/00

Note(s)

In this group, in condensed ring systems of six-membered aromatic rings and other rings, the double bond belonging to a benzene ring is not considered as unsaturated for the non-aromatic ring condensed thereon, e.g. the 1,2,3,4-tetrahydro- naphthalene ring is considered to be saturated outside the aromatic ring.  [3]

P:920 C07C 35/00
Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a ring other than a six-membered aromatic ring  [2]
P:910 C07C 37/00
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
P:900 C07C 39/00
Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
 C07C 39/00

Note(s)

In this group, in condensed ring systems of six-membered aromatic rings and other rings, the double bond belonging to the benzene ring is not considered as unsaturated for the non-aromatic ring condensed thereon.  [3]

P:890 C07C 41/00
Preparation of ethers; Preparation of compounds having groups, groups or groups  [3]
P:880 C07C 43/00
Ethers; Compounds having groups, groups or groups
P:870 C07C 45/00
Preparation of compounds having C=O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds  [2]
P:860 C07C 46/00
Preparation of quinones  [3]
P:850 C07C 47/00
Compounds having —CHO groups
 C07C 47/02
·  Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
 C07C 47/20
·  Unsaturated compounds having —CHO groups bound to acyclic carbon atoms
 C07C 47/28
·  Saturated compounds having —CHO groups bound to carbon atoms of rings other than six-membered aromatic rings
 C07C 47/38
·  Unsaturated compounds having —CHO groups bound to carbon atoms of rings other than six-membered aromatic rings
 C07C 47/52
·  Compounds having —CHO groups bound to carbon atoms of six-membered aromatic rings
P:840 C07C 49/00
Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
P:830 C07C 50/00
Quinones (for quinone methides, see unsaturated ketones with a keto group being part of a ring)  [3]
 C07C 50/00

Note(s)

In this group, quinhydrones are classified according to their quinoid part.  [3]

P:820 C07C 51/00
Preparation of carboxylic acids or their salts, halides, or anhydrides  [2]
 C07C 51/02
·  from salts of carboxylic acids
 C07C 51/04
·  from carboxylic acid halides
 C07C 51/06
·  from carboxylic acid amides
 C07C 51/08
·  from nitriles
 C07C 51/083
·  from carboxylic acid anhydrides  [3]
 C07C 51/09
·  from carboxylic acid esters or lactones (saponification of carboxylic acid esters C07C 27/00)
 C07C 51/093
·  by hydrolysis of —CX3 groups, X being halogen  [3]
 C07C 51/097
·  from or via nitro-substituted organic compounds  [3]
 C07C 51/10
·  by reaction with carbon monoxide
 C07C 51/15
·  by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis  [2]
 C07C 51/16
·  by oxidation (C07C 51/10 takes precedence)  [3]
 C07C 51/34
·  by oxidation with ozone; by hydrolysis of ozonides  [3]
 C07C 51/347
·  by reactions not involving formation of carboxyl groups  [3]
 C07C 51/41
·  Preparation of salts of carboxylic acids by conversion of the acids or their salts into salts with the same carboxylic acid part (preparation of soap C11D)  [3]
 C07C 51/42
·  Separation; Purification; Stabilisation; Use of additives  [3]
 C07C 51/54
·  Preparation of carboxylic acid anhydrides (by oxidation C07C 51/16)
 C07C 51/58
·  Preparation of carboxylic acid halides
P:810 C07C 53/00
Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
P:800 C07C 55/00
Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms  [2]
P:790 C07C 57/00
Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms  [2]
P:780 C07C 59/00
Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O-metal, —CHO, keto, ether, groups, groups, or groups  [2]
P:770 C07C 61/00
Compounds having carboxyl groups bound to carbon atoms of rings other than six-membered aromatic rings
P:760 C07C 62/00
Compounds having carboxyl groups bound to carbon atoms of rings other than six-membered aromatic rings and containing any of the groups OH, O-metal, —CHO, keto, ether, groups, groups, or groups  [3]
P:750 C07C 63/00
Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings  [2]
P:740 C07C 65/00
Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings and containing any of the groups OH, O-metal, —CHO, keto, ether, groups, groups, or groups
P:730 C07C 66/00
Quinone carboxylic acids  [2]
P:720 C07C 67/00
Preparation of carboxylic acid esters
 C07C 67/00

Note(s)

In this group, lactones used as reactants are considered as being esters.  [3]

P:710 C07C 68/00
Preparation of esters of carbonic or haloformic acids  [2]
P:700 C07C 69/00
Esters of carboxylic acids; Esters of carbonic or haloformic acids
 C07C 69/00

Note(s)

Attention is drawn to Note (6) following the title of this subclass. [5]

P:690 C07C 71/00
Esters of oxyacids of halogens
 C07C 201/00 - 
C07C 291/00
Compounds containing carbon and nitrogen with or without hydrogen, halogens or oxygen  [5]
P:670 C07C 201/00
Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton  [5]
P:660 C07C 203/00
Esters of nitric or nitrous acid  [5]
P:650 C07C 205/00
Compounds containing nitro groups bound to a carbon skeleton  [5]
P:640 C07C 207/00
Compounds containing nitroso groups bound to a carbon skeleton  [5]
P:630 C07C 209/00
Preparation of compounds containing amino groups bound to a carbon skeleton  [5]
P:620 C07C 211/00
Compounds containing amino groups bound to a carbon skeleton  [5]
P:610 C07C 213/00
Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton  [5]
P:600 C07C 215/00
Compounds containing amino and hydroxy groups bound to the same carbon skeleton  [5]
P:590 C07C 217/00
Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton  [5]
P:580 C07C 219/00
Compounds containing amino and esterified hydroxy groups bound to the same carbon skeleton  [5]
P:570 C07C 221/00
Preparation of compounds containing amino groups and doubly-bound oxygen atoms bound to the same carbon skeleton  [5]
P:560 C07C 223/00
Compounds containing amino and —CHO groups bound to the same carbon skeleton  [5]
P:550 C07C 225/00
Compounds containing amino groups and doubly-bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly-bound oxygen atoms not being part of a —CHO group, e.g. amino ketones  [5]
P:540 C07C 227/00
Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton  [5]
P:530 C07C 229/00
Compounds containing amino and carboxyl groups bound to the same carbon skeleton  [5]
P:520 C07C 231/00
Preparation of carboxylic acid amides  [5]
P:510 C07C 233/00
Carboxylic acid amides  [5]
P:500 C07C 235/00
Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms  [5]
P:490 C07C 237/00
Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups  [5]
P:480 C07C 239/00
Compounds containing nitrogen-to-halogen bonds; Hydroxylamino compounds or ethers or esters thereof  [5]
P:470 C07C 241/00
Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes  [5]
P:460 C07C 243/00
Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes  [5]
P:450 C07C 245/00
Compounds containing chains of at least two nitrogen atoms with at least one nitrogen-to-nitrogen multiple bond (azoxy compound C07C 291/00)  [5]
P:440 C07C 247/00
Compounds containing azido groups  [5]
P:430 C07C 249/00
Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton (of diazo compounds C07C 245/00)  [5]
P:420 C07C 251/00
Compounds containing nitrogen atoms doubly- bound to a carbon skeleton (diazo compounds C07C 245/00)  [5]
P:410 C07C 253/00
Preparation of carboxylic acid nitriles (of cyanogen or compounds thereof C01C 3/00)  [5]
P:400 C07C 255/00
Carboxylic acid nitriles (cyanogen or compounds thereof C01C 3/00)  [5]
P:390 C07C 257/00
Compounds containing carboxyl groups, the doubly-bound oxygen atom of a carboxyl group being replaced by a doubly-bound nitrogen atom, this nitrogen atom not being further bound to an oxygen atom, e.g. imino-ethers, amidines  [5]
P:380 C07C 259/00
Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups  [5]
P:370 C07C 261/00
Derivatives of cyanic acid  [5]
P:360 C07C 263/00
Preparation of derivatives of isocyanic acid  [5]
P:350 C07C 265/00
Derivatives of isocyanic acid  [5]
P:340 C07C 267/00
Carbodiimides  [5]
P:330 C07C 269/00
Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups

the nitrogen atom not being part of nitro or nitroso groups
  [5]
P:320 C07C 271/00
Derivatives of carbamic acid, i.e. compounds containing any of the groups

the nitrogen atom not being part of nitro or nitroso groups
  [5]
P:310 C07C 273/00
Preparation of urea or its derivatives, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups  [5]
P:300 C07C 275/00
Derivatives of urea, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups  [5]
P:290 C07C 277/00
Preparation of guanidine or its derivatives, i.e. compounds containing the group the singly-bound nitrogen atoms not being part of nitro or nitroso groups  [5]
P:280 C07C 279/00
Derivatives of guanidine, i.e. compounds containing the group the singly-bound nitrogen atoms not being part of nitro or nitroso groups  [5]
P:270 C07C 281/00
Derivatives of carbonic acid containing functional groups covered by groups C07C 269/00-C07C 279/00 in which at least one nitrogen atom of these functional groups is further bound to another nitrogen atom not being part of a nitro or nitroso group  [5]
P:680 C07C 291/00
Compounds containing carbon and nitrogen and having functional groups not covered by groups C07C 201/00-C07C 281/00  [5]
 C07C 301/00 - 
C07C 395/00
Compounds containing carbon together with sulfur, selenium or tellurium, with or without hydrogen, halogens, oxygen or nitrogen  [5]
P:250 C07C 301/00
Esters of sulfurous acid  [5]
P:240 C07C 303/00
Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides  [5]
P:230 C07C 305/00
Esters of sulfuric acids  [5]
P:220 C07C 307/00
Amides of sulfuric acids, i.e. compounds having singly-bound oxygen atoms of sulfate groups replaced by nitrogen atoms, not being part of nitro or nitroso groups  [5]
P:210 C07C 309/00
Sulfonic acids; Halides, esters, or anhydrides thereof (chemical modification of petroleum waxes C10G 73/00)  [5]
P:200 C07C 311/00
Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups  [5]
P:190 C07C 313/00
Sulfinic acids; Sulfenic acids; Halides, esters or anhydrides thereof; Amides of sulfinic or sulfenic acids, i.e. compounds having singly-bound oxygen atoms of sulfinic or sulfenic groups replaced by nitrogen atoms, not being part of nitro or nitroso groups  [5]
P:180 C07C 315/00
Preparation of sulfones; Preparation of sulfoxides  [5]
P:170 C07C 317/00
Sulfones; Sulfoxides  [5]
P:160 C07C 319/00
Preparation of thiols, sulfides, hydropolysulfides or polysulfides  [5]
P:150 C07C 321/00
Thiols, sulfides, hydropolysulfides or polysulfides  [5]
P:140 C07C 323/00
Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups  [5]
P:130 C07C 325/00
Thioaldehydes; Thioketones; Thioquinones; Oxides thereof  [5]
P:120 C07C 327/00
Thiocarboxylic acids  [5]
P:110 C07C 329/00
Thiocarbonic acids; Halides, esters or anhydrides thereof  [5]
P:100 C07C 331/00
Derivatives of thiocyanic acid or of isothiocyanic acid  [5]
P:90 C07C 333/00
Derivatives of thiocarbamic acids, i.e. compounds containing any of the groups

the nitrogen atom not being part of nitro or nitroso groups
  [5]
P:80 C07C 335/00
Thioureas, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups  [5]
P:70 C07C 337/00
Derivatives of thiocarbonic acids containing functional groups covered by groups C07C 333/00 or C07C 335/00 in which at least one nitrogen atom of these functional groups is further bound to another nitrogen atom not being part of a nitro or nitroso group  [5]
P:260 C07C 381/00
Compounds containing carbon and sulfur and having functional groups not covered by groups C07C 301/00-C07C 337/00  [5]
P:60 C07C 391/00
Compounds containing selenium  [5]
P:50 C07C 395/00
Compounds containing tellurium  [5]
P:40 C07C 401/00
Irradiation products of cholesterol or its derivatives; Vitamin D derivatives, 9,10-seco cyclopenta[a]phenanthrene or analogues obtained by chemical preparation without irradiation  [5]
P:30 C07C 403/00
Derivatives of cyclohexane or of a cyclohexene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene rings, e.g. vitamin A, beta-carotene, beta-ionone  [5]
P:20 C07C 405/00
Compounds containing a five-membered ring having two side-chains in ortho position to each other, and having oxygen atoms directly attached to the ring in ortho position to one of the side-chains, one side-chain containing, not directly attached to the ring, a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, and the other side-chain having oxygen atoms attached in gamma-position to the ring, e.g. prostaglandins  [5]
P:10 C07C 407/00
Preparation of peroxy compounds  [5]
P:0 C07C 409/00
Peroxy compounds  [5]