| 摘要 |
PCT No. PCT/GB96/03093 Sec. 371 Date Aug. 17, 1998 Sec. 102(e) Date Aug. 17, 1998 PCT Filed Dec. 16, 1996 PCT Pub. No. WO97/27247 PCT Pub. Date Jul. 31, 1997A monoazo dye of the formula: wherein: R1 represents -C3H6CN, -C2H4Cl, -C3H6Cl, -C2H4OCOCH3 or -C2H4OCOCH2Cl; R2 and R3 each independently represent a C1-4-alkyl group; and R4, R5 and R6 each independently represent H, F, Cl, Br, I, -SO2F, or an organic moiety selected from the group consisting of C1-6 alkyl, C1-6 alkoxy, C1-4 alkanoylamino, -NHSO2 alkyl, -NHCOC1-4 alkyl and -Ophenyl moieties, each organic moiety being unsubstituted or substituted by at least one nonionic substituent.
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