Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
C09B 1/42

the acyl groups being residues of an aromatic carboxylic acid

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Dyes with an anthracene nucleus not condensed with any other ring > Amino anthraquinones > Preparation from starting materials already containing the anthracene nucleus > Dyes with acylated amino groups > the acyl groups being residues of an aromatic carboxylic acid

CPC:

Dyes with anthracene nucleus not condensed with any other ring > Amino-anthraquinones > Preparation from starting materials already containing the anthracene nucleus > Dyes with acylated amino groups > the acyl groups being residues of an aromatic carboxylic acid

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

Navigate with arrow keys, Enter to open

  • C09B 1/425 CPC only CPC only
  • C09B 1/43 Dicarboxylic acids since 1980 IPC+CPC Available in IPC and CPC