DIFF Subgroup
A61K 31/135 having aromatic rings
Introduced: July 1974
Title
Titles differ between systems:
IPC: having aromatic rings, e.g. methadone
CPC: having aromatic rings
Full Title
Full titles differ between systems:
IPC:
Medicinal preparations containing organic active ingredients > Amines, e.g. amantadine > having aromatic rings, e.g. methadone
CPC:
Medicinal preparations containing organic active ingredients > Amines > having aromatic rings
IPC and CPC are identically structured here. All 3 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 31/136 having the amino group directly attached to the aromatic ring, e.g. benzeneamine since 2000 IPC+CPC Available in IPC and CPC
- A61K 31/137 Arylalkylamines, e.g. amphetamine, epinephrine, salbutamol, ephedrine since 2000 IPC+CPC Available in IPC and CPC
- A61K 31/138 Aryloxyalkylamines, e.g. propranolol, tamoxifen, phenoxybenzamine (atenolol A61K31/165; pindolol A61K31/404; timolol A61K31/5377) since 2000 IPC+CPC Available in IPC and CPC