C.I. Direct Black 91

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Product Description

Product

C.I. Direct Black 91

CAS

6739-62-4

Formula

C₃₈H₂₈N₈O₁₃S.₃Na

Synonym

C.I. Direct Black 91; trisodium 2-[[2-amino-6-[[4'-[(3-carboxylato-4-hydroxyphenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-7-sulphonato-1-naphthyl]azo]-5-nitrobenzoate; 1'-biphenyl]-4-yl]azo]-5-hydroxy-7-sulfo-1-naphthalenyl]azo]-5-nitro-y[