|  | C |
SECTION C — CHEMISTRY AND METALLURGY

CHEMISTRY

|  | C07 |
ORGANIC CHEMISTRY (such compounds as the oxides, sulphides, and oxysulphides of carbon, cyanogen, phosgene, hydrocyanic acid and salts thereof Fulltext... Hierarchy... Expanded...C01; macromolecular compounds Fulltext... Hierarchy... Expanded...C08; dyes Fulltext... Hierarchy... Expanded...C09; fermentation products Fulltext... Hierarchy... Expanded...C12; production of organic compounds by electrolysis or electrophoresis Fulltext... Hierarchy... Expanded...C25B 3/00)

|  | C07 |
Note(s) 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 Fulltext... Hierarchy... Expanded...C07C 87/52), sodium oxalate is classified as oxalic acid (in Fulltext... Hierarchy... Expanded...C07C 55/06), 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 Fulltext... Hierarchy... Expanded...C07C and not in sub-class Fulltext... Hierarchy... Expanded...C07F— the alcoholates in Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C07C 31/28-C07C 31/32 and the phenates as the corresponding phenols in Fulltext... Hierarchy... Expanded...C07C 39/00. Salts formed between two or more organic compounds are classified as the compound providing the essential ion with secondary classification as the compound providing the other ion. In the absence of an indication to the contrary, and with the exception referred to below, a compound is always classified in the last appropriate place in the classification system, e.g. a compound containing an acyclic chain and a heterocyclic ring is classified only as a heterocyclic compound, and a sterol is classified only as a cyclopentanophenanthrene compound. In general, and in the absence of an indication to the contrary (such as groups Fulltext... Hierarchy... Expanded...C07C 59/25, Fulltext... Hierarchy... Expanded...C07C 59/26), 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. Albumens, proteins, alkaloids of unknown structure, glucosides of unknown structure are examples of compounds to be found unter Fulltext... Hierarchy... Expanded...C07G. Inventions dealing with chemical compounds and their preparation are classified in the groups for the type of compound prepared. The processes of preparation should be secondarily classified in the groups for the types of reaction employed when such groups exist. 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 may be secondarily classified in the groups for the types of compounds prepared.

|  | C07G |
COMPOUNDS OF UNKNOWN CONSTITUTION

|  | C07G 1/00 |
Lignin; Lignin derivatives

|  | C07G 3/00 |
Glycosides (polysaccharides Fulltext... Hierarchy... Expanded...C08B)

|  | C07G 5/00 |
Alkaloids

|  | C07G 7/00 |
Proteins; Albumens; Nucleoproteins; Degradation products of proteins (foodstuffs Fulltext... Hierarchy... Expanded...A23)

|  | C07G 7/02 |
· | Enzymes

|  | C07G 7/022 |
· · | extraction from plants

|  | C07G 7/024 |
· · · | from malt

|  | C07G 7/026 |
· · | extraction from animal material

|  | C07G 7/028 |
· · | extraction from micro-organisms

|  | C07G 7/03 |
· · · | from yeast

|  | C07G 7/04 |
· | Metal compounds

|  | C07G 7/06 |
· · | of keratin or its degradation products

|  | C07G 9/00 |
Ichthyol

|  | C07G 11/00 |
Antibiotics

|  | C07G 13/00 |
Vitamins (vitamin K Fulltext... Hierarchy... Expanded...C07C 49/66; pantothenic acid Fulltext... Hierarchy... Expanded...C07C 103/50; vitamins of the D group Fulltext... Hierarchy... Expanded...C07C 172/00; vitamin A Fulltext... Hierarchy... Expanded...C07C 175/00; pyridoxal, pyridoxamin Fulltext... Hierarchy... Expanded...C07D 213/66; pyridoxin Fulltext... Hierarchy... Expanded...C07D 213/67; vitamin C Fulltext... Hierarchy... Expanded...C07D 307/62; tocopherols Fulltext... Hierarchy... Expanded...C07D 311/72; lipoic acid Fulltext... Hierarchy... Expanded...C07D 339/04; vitamin B1Fulltext... Hierarchy... Expanded...C07D 415/00; riboflavin Fulltext... Hierarchy... Expanded...C07D 487/04; biotin Fulltext... Hierarchy... Expanded...C07D 495/04; sideramines, corresponding desferri compounds Fulltext... Hierarchy... Expanded...C07F 15/03; vitamin B12Fulltext... Hierarchy... Expanded...C07H 23/00)

|  | C07G 15/00 |
Hormones

|  | C07G 17/00 |
Other compounds of unknown constitution