CAS 85631-88-5: Direct Black 168

Description: Direct Black 168 is a synthetic azo dye primarily used in the textile industry for dyeing cotton and other cellulose fibers. It is characterized by its deep black color and excellent lightfastness, making it suitable for applications requiring durability. The dye is soluble in water, allowing for easy application in dyeing processes. Its chemical structure features multiple azo groups, which contribute to its color properties and stability. Direct Black 168 is known for its good affinity for cellulose fibers, enabling it to produce rich, uniform shades. However, like many azo dyes, it may raise environmental and health concerns due to potential degradation products that can be harmful. Therefore, its use is often regulated, and manufacturers are encouraged to follow safety guidelines to minimize exposure. Overall, Direct Black 168 is valued for its performance in textile applications, but awareness of its environmental impact is essential for sustainable practices in the dyeing industry.

Formula: C₃₄H₂₇N₉O₁₁S₃·3Na

InChI: InChI=1S/C34H27N9O11S3.3Na/c35-24-17-23(44)11-13-25(24)41-38-21-8-6-19(7-9-21)37-26-12-10-22(16-27(26)55(46,47)48)40-42-32-28(56(49,50)51)14-18-15-29(57(52,53)54)33(34(45)30(18)31(32)36)43-39-20-4-2-1-3-5-20;;;/h1-17,37,44-45H,35-36H2,(H,46,47,48)(H,49,50,51)(H,52,53,54);;;

InChI key: InChIKey=BJIKCCIYHXXZQT-UHFFFAOYSA-N

SMILES: [Na].O=S(=O)(O)C1=CC2=CC(=C(N=NC3=CC=C(NC4=CC=C(N=NC5=CC=C(O)C=C5N)C=C4)C(=C3)S(=O)(=O)O)C(N)=C2C(O)=C1N=NC=6C=CC=CC6)S(=O)(=O)O

Synonyms:

• 2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[4-[2-(2-amino-4-hydroxyphenyl)diazenyl]phenyl]amino]-3-sulfophenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:3)
• 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[4-[(2-amino-4-hydroxyphenyl)azo]phenyl]amino]-3-sulfophenyl]azo]-5-hydroxy-6-(phenylazo)-, trisodium salt
• Coriacide Black SB
• Derma Carbon NBS
• Direct Black H 8F-SF-VP132
• Direct Black HEF Liq.
• Direct Black HEF-SF
• Direct Black SB
• Duasyn Black HEF-SF Liquid
• Duasyn Direct Black HEF
• Duasyn Direct Black HEF-SF
• trisodium (3E)-5-amino-6-{(E)-[4-({4-[(2E)-2-(2-amino-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]phenyl}amino)-3-sulfonatophenyl]diazenyl}-4-oxo-3-(2-phenylhydrazinylidene)-3,4-dihydronaphthalene-2,7-disulfonate
• C.I. Direct Black 168
• Direct Black 168
• C.I. 335475

Direct black 168

CAS: 85631-88-5

• Formula: C₃₄H₂₇N₉NaO₁₁S₃
• Purity: 75%
• Color and Shape: Solid
• Molecular weight: 856.8167

Direct Black 168

CAS: 85631-88-5

• Molecular weight: 758.69g/mol

Direct Black 168 (tech grade)

CAS: 85631-88-5

• Formula: C₃₄H₂₄N₉Na₃O₁₁S₃
• Color and Shape: Black
• Molecular weight: 899.772

Direct black 168

CAS: 85631-88-5

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• Formula: C₃₄H₂₇N₉Na₃O₁₁S₃
• Color and Shape: Brown Powder
• Molecular weight: 902.8 g/mol