DIFF Subgroup
A61K 31/366 having six-membered rings, e.g. delta-lactones
Introduced: January 2000
Full Title
Medicinal preparations containing organic active ingredients > Heterocyclic compounds > having oxygen as the only ring hetero atom, e.g. fungichromin > Lactones > having six-membered rings, e.g. delta-lactones
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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