Preparation from carboxylic acids or derivatives thereof

Introduced: September 1968

Full Title

Porphines; Azaporphines > Phthalocyanines > Preparation from carboxylic acids or derivatives thereof

CPC subdivides this area 4x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

IPC defines codes here since 1980.

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C09B 47/061 CPC only CPC only
C09B 47/062 CPC only CPC only
C09B 47/063 CPC only CPC only
C09B 47/064 CPC only CPC only
C09B 47/065 CPC only CPC only
C09B 47/067 from phthalodinitriles since 1980 +5 CPC IPC+CPC Available in IPC and CPC
C09B 47/073 Preparation from isoindolenines since 1980 IPC+CPC Available in IPC and CPC