CAS 6428-38-2

2-Naphthalenesulfonic acid, 6-[2-[2-amino-4-[(2-hydroxyethyl)amino]phenyl]diazenyl]-3-[2-[4-[[4-[2-[7-[2-[2-amino-4-[(2-hydroxyethyl)amino]phenyl]diazenyl]-1-hydroxy-3-sulfo-2-naphthalenyl]diazenyl]phenyl]amino]-3-sulfophenyl]diazenyl]-4-hydroxy-, sodium salt (1:3)

Description:

2-Naphthalenesulfonic acid, 6-[2-[2-amino-4-[(2-hydroxyethyl)amino]phenyl]diazenyl]-3-[2-[4-[[4-[2-[7-[2-[2-amino-4-[(2-hydroxyethyl)amino]phenyl]diazenyl]-1-hydroxy-3-sulfo-2-naphthalenyl]diazenyl]phenyl]amino]-3-sulfophenyl]diazenyl]-4-hydroxy-, sodium salt (1:3), commonly referred to by its CAS number 6428-38-2, is a complex organic compound characterized by its azo dye structure. This substance features multiple functional groups, including sulfonic acid and amino groups, which contribute to its solubility in water and potential applications in dyeing and as a pH indicator. The presence of naphthalene and phenyl rings in its structure suggests that it may exhibit strong color properties, making it useful in various industrial applications, particularly in textiles and inks. Additionally, the compound's sodium salt form enhances its stability and solubility in aqueous solutions. Its intricate structure may also indicate potential biological activity, warranting further investigation into its environmental and health impacts.

Formula: C₄₈H₄₀N₁₃Na₃O₁₃S₃

InChI: InChI=1/C48H43N13O13S3.3Na/c49-37-23-30(51-15-17-62)9-12-39(37)58-55-32-3-1-26-19-43(76(69,70)71)45(47(64)35(26)21-32)60-54-29-7-5-28(6-8-29)53-41-14-11-34(25-42(41)75(66,67)68)57-61-46-44(77(72,73)74)20-27-2-4-33(22-36(27)48(46)65)56-59-40-13-10-31(24-38(40)50)52-16-18-63;;;/h1-14,19-25,51-53,62-65H,15-18,49-50H2,(H,66,67,68)(H,69,70,71)(H,72,73,74);;;/q;3*+1/p-3

InChI key: InChIKey=DBACBSGSOMTXCG-UHFFFAOYSA-N

SMILES: OC=1C2=C(C=C(S(=O)(=O)O)C1N=NC3=CC(S(=O)(=O)O)=C(NC4=CC=C(N=NC=5C(S(=O)(=O)O)=CC6=C(C5O)C=C(N=NC7=C(N)C=C(NCCO)C=C7)C=C6)C=C4)C=C3)C=CC(N=NC8=C(N)C=C(NCCO)C=C8)=C2.[Na]

Synonyms:

• 2-Naphthalenesulfonic acid, 6-[2-[2-amino-4-[(2-hydroxyethyl)amino]phenyl]diazenyl]-3-[2-[4-[[4-[2-[7-[2-[2-amino-4-[(2-hydroxyethyl)amino]phenyl]diazenyl]-1-hydroxy-3-sulfo-2-naphthalenyl]diazenyl]phenyl]amino]-3-sulfophenyl]diazenyl]-4-hydroxy-, sodium salt (1:3)
• 2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt
• Benzonerol ABS
• Cotoneral ABS
• Cotonerol AB
• Dialuminous Black AB
• Diazol Fast Black JRA
• Direct Artificial Silk Black BO
• Direct Black 2S
• Direct Black AB
• Direct Black Z for Leather
• Direct Fast Black AB
• Direct Fast Black CAB
• Kayarus Black ARX
• Orbamin Black A Conc.
• Sumilight Black AB
• Trisodium 6-[2-Amino-4-(2-Hydroxyethylamino)Phenyl]Azo-3-[4-[[4-[[7-[2-Amino-4-(2-Hydroxyethylamino)Phenyl]Azo-1-Hydroxy-3-Sulfonato-2-Naphthyl]Azo]-2-Sulfonato-Phenyl]Amino]Phenyl]Azo-4-Hydroxy-Naphthalene-2-Sulfonate
• trisodium (3Z)-6-[(E)-{2-amino-4-[(2-hydroxyethyl)amino]phenyl}diazenyl]-3-{2-[4-({4-[(2Z)-2-{7-[(E)-{2-amino-4-[(2-hydroxyethyl)amino]phenyl}diazenyl]-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene}hydrazinyl]phenyl}amino)-3-sulfonatophenyl]hydrazinylidene}-4-oxo-3,4-dihydronaphthalene-2-sulfonate
• C.I. Direct Black 32
• C.I. 35440
• C.I. Direct Black 32, trisodium salt
• C.I. Direct Black 32, trisodium salt (8CI)
• Direct Black 32
• Direct black 32 (C.I. 35440)
• C.I.Direct Black 32:C.I.35440
• LVTRSXQJPWCXPG-KGVGWTEBSA-N
• C.I.DIRECTBLACK32
• 2-Naphthalenesulfonic acid, 6-2-amino-4-(2-hydroxyethyl)aminophenylazo-3-4-4-7-2-amino-4-(2-hydroxyethyl)aminophenylazo-1-hydroxy-3-sulfo-2-naphthalenylazophenylamino-3-sulfophenylazo-4-hydroxy-, trisodium salt

C.I.Direct black 32

CAS: 6428-38-2

C.I.Direct Black 32 is a diazonium salt with an average particle diameter of about 10 nm and a dichroic ratio of about 1.5. It is used in the manufacture of organic colorants, such as black, brown, blue, and green pigments. C.I.Direct Black 32 has been used as a model species to study the chemical reaction rate of small particles in solution and the kinetics of thermal decomposition of intramolecular hydrogen bonds in polyphenols at various temperatures. The material can be recycled by dissolving it in an organic solvent and precipitating it out with water or uv irradiation.br> C.I.Direct Black 32 has strong absorption properties in the ultraviolet region (UV) and is used for coloring plastics, paper products, textiles, printing ink, leathers, etc.br>

Formula: C₄₈H₄₀N₁₃Na₃O₁₃S₃

Purity: Min. 95%

Molecular weight: 1,172.08 g/mol

Ref: 3D-FD145552