CPC Subgroup
C09B 26/02 Hydrazone dyes (hydrazone-azo dyes C09B56/18)
Full Title
Hydrazone dyes; Triazene dyes > Hydrazone dyes (hydrazone-azo dyes C09B56/18)
1 direct subcode
Child Classifications
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- C09B 26/04 cationic