IPC Subgroup
A61K 31/075 Ethers or acetals
Introduced: July 1974
Last revised: January 2006
Full Title
Medicinal preparations containing organic active ingredients > Ethers or acetals
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 31/08 acyclic, e.g. paraformaldehyde
- A61K 31/085 having an ether linkage to aromatic ring nuclear carbon