| Identification | Back Directory | [Name]
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 | [Synonyms]
C.I.30400
Einecs 229-801-5
C.I. Direct Black 91
VEVLZKXNXOGOGE-XHRYHXARSA-N
Direct black 91 (C.I. 30400)
C.I.Direct Black 91:C.I.30400
C.I. Direct black 21, trisodium salt
1'-biphenyl]-4-yl]azo]-5-hydroxy-7-sulfo-1-naphthalenyl]azo]-5-nitro-y[ tris
benzoic acid, 2-[[2-amino-6-[[4'-[(3-carboxy-4-hydroxyphenyl)azo]-3,3'-dimethox
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
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
trisodium,2-[[(6E)-2-amino-6-[[4-[4-[(2Z)-2-(3-carboxylato-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]-3-methoxyphenyl]-2-methoxyphenyl]hydrazinylidene]-5-oxo-7
5-[[4-[4-[[6-amino-5-[(2-carboxylato-4-nitrophenyl)diazenyl]-1-hydroxy-3-sulfonatonaphthalen-2-yl]diazenyl]-3-methoxyphenyl]-2-methoxyphenyl]diazenyl]-2-hydroxybenzoate
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
Benzoic acid, 2-(2-(2-amino-6-(2-(4'-(2-(3-carboxy-4-hydroxyphenyl)diazenyl)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)diazenyl)-5-hydroxy-7-sulfo-1-naphthalenyl)diazenyl)-5-nitro-, sodium salt (1:3)
trisodium,2-[[(6E)-2-amino-6-[[4-[4-[(2Z)-2-(3-carboxylato-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]-3-methoxyphenyl]-2-methoxyphenyl]hydrazinylidene]-5-oxo-7-sulfonatonaphthalen-1-yl]diazenyl]-5-nitrobenzoate | [EINECS(EC#)]
229-801-5 | [Molecular Formula]
C38H29N8NaO13S | [MDL Number]
MFCD00231280 | [MOL File]
6739-62-4.mol | [Molecular Weight]
860.74 |
| Hazard Information | Back Directory | [Uses]
Direct Black 91 is used as a jet-printing ink with improved storage stability and nozzle clogging resistance. Direct Black 91 is a cotton fiber dye. | [Preparation]
3,3′-Dimethoxylbenzidine double nitriding, First coupled with 2-Hydroxybenzoic acid, coupled with the first again with 2-Amino-5-nitrobenzoic acid diazo, in acid conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid and coupled the product of coupling. | [Properties and Applications]
red light black. Black powder. Soluble in water, the solution for the red light black, hard to stability. In dyeing of copper (a slight change color in a dark colored light iron ion. Used for cotton, viscose and their blended fabric dyeing, can be in cotton or viscose fabric direct printing can and dispersal dyes with bath dyeing.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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Fading
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Stain
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Fading
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Stain
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ISO
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4
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5
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6-7
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4-5
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5
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AATCC
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7
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5
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