IPC Subgroup
A61K 31/35 having six-membered rings with one oxygen as the only ring hetero atom
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 > having six-membered rings with one oxygen as the only ring hetero atom
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- MEDICAL OR VETERINARY SCIENCE; HYGIENE
- Subclass:
- PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
2 direct subcodes
Child Classifications
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- A61K 31/351 not condensed with another ring
- A61K 31/352 condensed with carbocyclic rings, e.g. cannabinols, methantheline