IPC Subgroup
A61K 31/235 having an aromatic ring attached to a carboxyl group
Introduced: July 1974
Last revised: January 2006
Full Title
Medicinal preparations containing organic active ingredients > Esters, e.g. nitroglycerine, selenocyanates > of carboxylic acids > having an aromatic ring attached to a carboxyl group
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- MEDICAL OR VETERINARY SCIENCE; HYGIENE
- Subclass:
- PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
1 direct subcode
Child Classifications
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- A61K 31/24 having an amino or nitro group