Polyazo dyestuffs having a dianisidine component, a diaminopheny

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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260171, C09B 3520, C09B 3536

Patent

active

040838455

ABSTRACT:
The invention relates to polyazo dyestuffs of the formula ##STR1## in which R denotes hydrogen, methyl or chlorine,

REFERENCES:
patent: 380098 (1888-03-01), Diehl
patent: 1009952 (1911-11-01), Bergdolt

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