Anionic acid dyes, processes for their preperation and their use

Details Anionic acid dyes, processes for their preperation and their use Anionic acid dyes, processes for their preperation and their use

1997-03-03

1999-01-12

Powers, Fiona T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

535797, 535803, 544187, 544189, 8677, C09B 4316

Patent

active

058592164

ABSTRACT:
Anionic acid dyes of the formula ##STR1## in which R.sub.1 and R.sub.2 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,

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