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PCE
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DIFF Main Group
C12P 7/00

Preparation of oxygen-containing organic compounds

Introduced: January 1980

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

IPC defines codes here since 1980.

Child Classifications

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  • C12P 7/66 containing the quinoid structure since 1980 IPC+CPC Available in IPC and CPC