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

2-[[2-氨基-6-[[4'-[(3-羧基-4-羟基苯基)偶氮]-3,3'-二甲氧基(1,1'-二苯基)-4-基]偶氮]-5-羟基-7-磺基-1-萘基]偶氮]-5-硝基苯甲酸三钠盐

Also known as: C.I. Direct Black 91, C.I. 30400, Direct black 91, Direct black 91 (C.I. 30400), Benzoic acid, 2-[[2-amino-6-[[4'-[(3-carboxy-4-hydroxyphenyl)azo]-3,3'-dimethoxy(1,1'-biphenyl)-4-yl]azo]-5-hydroxy-7-sulfo-1-naphthalenyl]azo]-5-nitro-, trisodium salt, 5-[[4'-[[6-Amino-5-[(2-carboxy-4-nitrophenyl)azo]-1-hydroxy-3-sulfo-2-naphtyl]azo]-3,3'-dimethoxy-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid trisodium salt

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 (CAS 6739-62-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C38H25N8Na3O13S and a molecular weight of 902.68500 g/mol. It is also known as C.I. Direct Black 91, C.I. 30400 and Direct black 91. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

6739-62-4

Jingsj CID

J-896679-5

Molecular Formula

C₃₈H₂₅N₈Na₃O₁₃S

Chinese Name

2-[[2-氨基-6-[[4'-[(3-羧基-4-羟基苯基)偶氮]-3,3'-二甲氧基(1,1'-二苯基)-4-基]偶氮]-5-羟基-7-磺基-1-萘基]偶氮]-5-硝基苯甲酸三钠盐

Molecular Weight

902.68500 g/mol

Category

Organic Acids

Last updated

8/21/2026