CPC Subgroup
C09B 35/039 characterised by the tetrazo component
Full Title
Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling > Disazo dyes > characterised by the tetrazo component
11 direct subcodes
Child Classifications
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- C09B 35/04 the tetrazo component being a benzene derivative
- C09B 35/06 the tetrazo component being a naphthalene derivative
- C09B 35/08 the tetrazo component being a derivative of biphenyl
- C09B 35/205 the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene
- C09B 35/22 the tetrazo component being a derivative of a diaryl ether
- C09B 35/227 the tetrazo component being a derivative of a diaryl sulfide or a diaryl polysulfide
- C09B 35/233 the tetrazo component being a derivative of a diaryl ketone or benzil
- C09B 35/24 the tetrazo component being a derivative of a diaryl amine
- C09B 35/26 the tetrazo component being a derivative of a diaryl urea
- C09B 35/28 the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—
- C09B 35/34 the tetrazo component being heterocyclic