6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt is a complex organic compound that exhibits unique color properties and solubility characteristics in various solvents. It is soluble in water for a violet-blue color, in ethanol for a blue color, and changes color in the presence of strong sulfuric acid (blue) and diluted blu-ray (purple). The dye solution forms a dark purple precipitate when mixed with strong hydrochloric acid, and remains the same color when mixed with a thick sodium hydroxide solution.
2609-87-2
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Basic information
- Product Name: 6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt
- Synonyms: 6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt;C.I.23830;C.I.Direct Blue 231
- CAS NO:2609-87-2
- Molecular Formula: C34H28 N6 O8 S2 . 2 Na
- Molecular Weight: 0
- EINECS: N/A
- Product Categories: N/A
- Mol File: 2609-87-2.mol
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: /
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt(CAS DataBase Reference)
- NIST Chemistry Reference: 6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt(2609-87-2)
- EPA Substance Registry System: 6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt(2609-87-2)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 2609-87-2(Hazardous Substances Data)
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2609-87-2 Usage
Uses
Used in Textile Industry:6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt is used as a dye for coloring textiles. Its color-changing properties in different solvents and pH conditions make it suitable for creating vibrant and unique color effects in fabrics.
Used in Analytical Chemistry:
6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt can be used as an analytical reagent in various chemical tests due to its color-changing properties in response to different chemical environments.
Used in Acid-Base Indicators:
The color changes exhibited by 6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt in the presence of acids and bases make it a potential candidate for use as an acid-base indicator in various applications.
Standard:
6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt has been tested for various properties, including acid resistance (ISO 4-5), alkali resistance (ISO 4), light fastness (ISO 1), soaping (ISO 1-2), water fading (ISO 1-2), and stain fading (ISO 2). These properties indicate its potential applications and performance in different environments and industries.
Preparation
3,3′-Dimethylbenzidine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid (2 Moore) coupledStandard
Acid ResistanceFading
StainISO
4-5Check Digit Verification of cas no
The CAS Registry Mumber 2609-87-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,0 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.Calculate Digit Verification of CAS Registry Number 2609-87:
(6*2)+(5*6)+(4*0)+(3*9)+(2*8)+(1*7)=92
92 % 10 = 2
So 2609-87-2 is a valid CAS Registry Number.
InChI:InChI=1/C34H28N6O8S2.2Na/c1-17-15-19(3-9-25(17)37-39-27-11-5-21-29(49(43,44)45)13-7-23(35)31(21)33(27)41)20-4-10-26(18(2)16-20)38-40-28-12-6-22-30(50(46,47)48)14-8-24(36)32(22)34(28)42;;/h3-16,41-42H,35-36H2,1-2H3,(H,43,44,45)(H,46,47,48);;/q;2*+1/p-2
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6,6'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-1-naphthalenesulfonic acid]disodium salt
