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PCE
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DIFF Subgroup
A61K 31/085

having an ether linkage to aromatic ring nuclear carbon

Introduced: July 1974

Full Title

Medicinal preparations containing organic active ingredients > Ethers or acetals > having an ether linkage to aromatic ring nuclear carbon

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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  • A61K 31/09 having two or more such linkages since 1974 IPC+CPC Available in IPC and CPC