| 摘要 |
A monoazo compound which is useful for dyeing or printing fiber materials, particularly cellulose fiber materials in red color, and which is represented by a free acid of the formula, <IMAGE> wherein D is a phenyl group substituted with one to three substituents selected from the group consisting of halogen atoms and methyl, ethyl, methoxy, ethoxy, acetylamino, propionylamino, sulfo and carboxyl groups, R is a C1 to C4 alkyl group unsubstituted or substituted with a halogen atom or a hydroxyl, cyano, alkyl, alkoxy, carboxyl, carbamoyl, alkoxycarbonyl or sulfo group, A is a phenylene group unsubstituted or substituted with one or two substituents selected from the group consisting of methyl, ethyl, methoxy, ethoxy and sulfo groups and chlorine and bromine atoms, or a naphthylene group unsubstituted or substituted with one sulfo group, and X is -SO2CH=CH2 or -SO2CH2CH2Y in which Y is a group capable of being split by the action of an alkali. |
