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PCE
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DIFF Subgroup
C09B 35/26

the tetrazo component being a derivative of a diaryl urea

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Disazo or polyazo dyes of the type A ← D → B prepared by diazotising and coupling > Disazo dyes > characterised by the tetrazo component > the tetrazo component being a derivative of a diaryl urea

CPC:

Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling > Disazo dyes > characterised by the tetrazo component > the tetrazo component being a derivative of a diaryl urea

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