DIFF Subgroup
A61K 31/12 Ketones
Introduced: July 1974
Full Title
Medicinal preparations containing organic active ingredients > Ketones
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2000.
Child Classifications
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- A61K 31/122 having the oxygen directly attached to a ring, e.g. quinones, vitamin K1, anthralin since 2000 IPC+CPC Available in IPC and CPC