IPC Subgroup
A61K 31/175 having the group , N—C(O)—N=N— or , e.g. carbonohydrazides, carbazones, semicarbazides, semicarbazones; Thioanalogues thereof
Introduced: July 1974
Last revised: January 2006
Full Title
Medicinal preparations containing organic active ingredients > Amides, e.g. hydroxamic acids > having the group N—C(O)—N or N—C(S)—N, e.g. urea, thiourea, carmustine > having the group , N—C(O)—N=N— or , e.g. carbonohydrazides, carbazones, semicarbazides, semicarbazones; Thioanalogues thereof
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- MEDICAL OR VETERINARY SCIENCE; HYGIENE
- Subclass:
- PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES