FIELD: chemistry.
SUBSTANCE: described are new dispersed azo dyes, which contain cyanmethyl ester groups of formula (I) , in which D, R1-R7, s, n assume values given in paragraph 1 of the formula of invention.
EFFECT: proposed dyes have high colour intensity, resistance to water, are less sensitive to changes in pH of the environment compared to known dyes of this group.
8 cl, 11 tbl, 235 ex
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Authors
Dates
2009-12-20—Published
2004-10-15—Filed