| 摘要 |
A reactive disazo dye of formula (I) is prepd. by coupling a disazo cpd. of aminobezene-beta-sulphatoethyl sulphone (2 mole ratio) of formula (II) with 1,3-diamianobenzene-4-sulfonic acid (1 mole ratio) or formula (III). In formulas, R is hydrogen, methyl or methoxy gp.; X is -CH2CH2OSO3H or -CH= CH2.
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