DIFF Main Group
A61K 31/00 Medicinal preparations containing organic active ingredients
Introduced: July 1974
Of 31 combined children, 30 exist in both systems.
1 codes are CPC-only extensions.
9 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1974.
Child Classifications
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- A61K 31/045 Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates since 1974 IPC+CPC Available in IPC and CPC
- A61K 31/095 Sulfur, selenium, or tellurium compounds, e.g. thiols since 1974 IPC+CPC Available in IPC and CPC
- A61K 31/185 Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids (hydroxamic acids A61K31/16; peroxy acids A61K31/327) since 1974 IPC+CPC Available in IPC and CPC
- A61K 31/325 Carbamic acids; Thiocarbamic acids; Anhydrides or salts thereof (thiurams A61K31/145) since 1974 IPC+CPC Available in IPC and CPC
- A61K 31/327 Peroxy compounds, e.g. hydroperoxides, peroxides, peroxyacids since 2000 IPC+CPC Available in IPC and CPC
- A61K 31/56 Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids since 1974 IPC+CPC Available in IPC and CPC
- A61K 31/59 Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems since 1974 IPC+CPC Available in IPC and CPC