| 摘要 |
PCT No. PCT/US97/21150 Sec. 371 Date Apr. 27, 1999 Sec. 102(e) Date Apr. 27, 1999 PCT Filed Nov. 18, 1997 PCT Pub. No. WO98/22537 PCT Pub. Date May 28, 1998The invention is a composition of matter useful as an acid yellow dye having formula (I) wherein: X is hydrogen or SO3-M+; M+ Na+, Li+, K+, NH4+, or hydroxyalkylammonium of the formula [H-(OCH2CH2)n]p NHm, where n is 1 to 5, p is 1 to 3, and p+m is 4; R1 is hydrogen, a metal ion, an alkyl or C1-4, of hydroxyalkyl of C1-4, and combinations thereof; and R2 is an unsubstituted aromatic ring or a substituted aromatic ring having at least one substituent, provided that when one of the substituents is SO3-M+, X is hydrogen; and combinations thereof. The invention also includes a process for dyeing a material with this compound and the material so dyed.
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