Patent ID: 6020470
Filing Date: 2000-02-01
Classification: C09B

Abstract:
A water-soluble azo compound represented by the general formula [I]: ##STR22## wherein, Y is --OM, --OR1, or --NH--X, and Y' is --OM', --OR1', or --NH--X',in which M and M' each represent a hydrogen atom or an alkali metal;R1 and R1' each represent a group selected from an optionally branched saturated or unsaturated aliphatic hydrocarbon group having 1 to 6 carbon atoms, an optionally substituted cycloalkyl group having 3 to 6 carbon atoms, and an optionally substituted aromatic group; andX and X' each represent an optionally substituted aromatic group or an optionally substituted heterocyclic group having conjugated double bonds;provided that at least one of Y and Y' represents --OM or --OM';p represents an integer 1 or 2;Z is ##STR23## in which R2, R3 and R4 each represent a hydrogen atom or a halogen atom; andW1 and W2 each represent a hydrogen atom, a halogen atom, or a group selected from ##STR24## in which the aromatic rings may optionally have further substituent(s); m1 and m2 each represent an integer 1 or 2, and n1 and n2 each represent an integer from 1 to 3.