butylammonium 4-[(2-hydroxy-1-naphthyl)azo]-3-methylbenzenesulphonate;Benzenesulfonic acid, 4-[(2-hydroxy-1-naphthalenyl)azo]-3-methyl-, compd. with 1-butanamine;Benzenesulfonic acid, 4-[(2-hydroxy-1-naphthalenyl)azo]-3-methyl-, compd. with 1-butanamine (1:1);Einecs 284-409-1
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