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PCE
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DIFF Subgroup
C09B 1/473

the acyl groups being residues of a sulfonic acid

Introduced: January 1980

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 a sulfonic 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 a sulfonic acid

No child classifications to compare. This is a leaf node in both IPC and CPC.