| abstract |
A monoazo compound of the formula, ##STR1## wherein D is a heterocyclic or carbocyclic compound residue such as benzothiazolyl and phenyl, X is hydrogen, alkyl, alkoxy, halogeno, acylamino or the like, Y is hydrogen, halogeno, alkyl, alkoxy and the like, R 1 is alkyl, R 2 is C 2 -C 4 alkylene, B is a bridging group such as ##STR2## --O--, --S--, C 1 -C 6 alkylene and the like, and W 1 , W 2 , W 3 , Z 1 , Z 2 and Z 3 are independently hydrogen, alkyl, halogeno or the like, which is useful for dyeing hydrophobic fiber materials to give dyed or printed product of a deep color excellent in fastness properties, particularly those such as washing fastness, even after various finishing treatments of the product. |