| 摘要 |
New water-sol. azo dyes comprise compnds. where SO3 H gp. is in 4- or 6-posn., X1 is a pyrazolone radical or an acetacetarylide radical or Y1 is a resorcinol radical, a 21, 51-disulpho-1-phenyl-3-methyl-pyraz olene-5 radical, a 2- sulpho-N-acetacetylaniline radical or a 2,5-dimethoxy-4-chloro-N-acetacetylaniline radical.
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