4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt is a complex organic compound that exhibits unique color properties and solubility characteristics. It is soluble in water, with the color changing from dark in the presence of strong sulfuric acid to blue-black, and in ethanol, where it appears as a blue light green. 4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt also demonstrates acid and alkali resistance, as well as light fastness, making it suitable for various applications.

4656-30-8

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Basic information
1. Product Name: 4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt
2. Synonyms: 4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt;C.I.30345;C.I.Direct Black 14;2,7-Naphthalenedisulfonic acid, 4-amino-6-((4'-((7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-5-hydroxy-3-((4-nitrophenyl)azo)-, trisodium salt
3. CAS NO:4656-30-8
4. Molecular Formula: C38H27N9O13S2.3Na
5. Molecular Weight: 950.79
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 4656-30-8.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt(4656-30-8)
11. EPA Substance Registry System: 4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt(4656-30-8)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 4656-30-8(Hazardous Substances Data)

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4656-30-8 Usage

Uses

Used in Dye Industry:
4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt is used as a dye for its color-changing properties and solubility in water and ethanol. Its acid and alkali resistance, as well as light fastness, make it suitable for use in various dyeing applications.
Used in Textile Industry:
In the textile industry, 4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt is used as a colorant for fabrics. Its ability to change color in the presence of different chemicals and its resistance to acid, alkali, and light make it an ideal choice for染色 and staining processes.
Used in Analytical Chemistry:
4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt can be used as an analytical reagent in various chemical tests. Its color-changing properties and solubility in different solvents make it useful for detecting and measuring the presence of specific chemicals.
Used in Water Treatment:
In water treatment processes, 4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt can be used as a flocculant or coagulant. Its ability to form precipitates in the presence of certain chemicals can help in the removal of impurities and contaminants from water.

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, and 4-Nitrobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?and products in the coupling alkaline conditions coupled, then in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.

Standard

Acid Resistance

Fading

Stain

ISO

2-3

Check Digit Verification of cas no

The CAS Registry Mumber 4656-30-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,5 and 6 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4656-30:
(6*4)+(5*6)+(4*5)+(3*6)+(2*3)+(1*0)=98
98 % 10 = 8
So 4656-30-8 is a valid CAS Registry Number.

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