Patent ID: 6709502
Filing Date: 2004-03-23
Classification: C09B,C09D

Abstract:
Monoazo dyes of general formulas (IV) whereinR1 represents hydrogen, alkyl having from 1 to 6 C atoms, nitro, fluoro, chloro or bromo; R2, R3 independently represent hydrogen, alkyl or alkoxy each having from 1 to 6 C atoms, substituted amide having up to 6 C atoms, where the substituents are selected from the group consisting of carboxy, hydroxy, carboxymethyl and carboxyethyl; fluoro, chloro or bromo; m is 0, 1 or 2; n is 0 or 1; and M represents hydrogen, a metal cation or an ammonium cation, which may be substituted by one or more alkyl or substituted alkyl groups each having from 1 to 18 C atoms.