IPC Subgroup
A61K 31/335 having oxygen as the only ring hetero atom, e.g. fungichromin
Introduced: July 1974
Last revised: January 2006
Full Title
Medicinal preparations containing organic active ingredients > Heterocyclic compounds > having oxygen as the only ring hetero atom, e.g. fungichromin
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- MEDICAL OR VETERINARY SCIENCE; HYGIENE
- Subclass:
- PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
6 direct subcodes
Child Classifications
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- A61K 31/336 having three-membered rings, e.g. oxirane, fumagillin
- A61K 31/337 having four-membered rings, e.g. taxol
- A61K 31/34 having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
- A61K 31/35 having six-membered rings with one oxygen as the only ring hetero atom
- A61K 31/357 having two or more oxygen atoms in the same ring, e.g. crown ethers, guanadrel
- A61K 31/365 Lactones