7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt is a complex organic compound with a unique chemical structure. It is characterized by its dark blue-purple color and solubility in water, ethanol, and soluble fiber element, while being insoluble in other organic solvents. 7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt exhibits strong resistance to acids and alkalis, as well as good light fastness and soaping properties. It is also known for its fading and staining characteristics.

6507-84-2

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Basic information
1. Product Name: 7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt
2. Synonyms: 7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt;C.I.22520;C.I.Direct Violet 85;1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4'-((1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-, trisodium salt
3. CAS NO:6507-84-2
4. Molecular Formula: C38H27N5O11S3.3Na
5. Molecular Weight: 894.83
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 6507-84-2.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: 7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt(CAS DataBase Reference)
10. NIST Chemistry Reference: 7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt(6507-84-2)
11. EPA Substance Registry System: 7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt(6507-84-2)
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: 6507-84-2(Hazardous Substances Data)

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6507-84-2 Usage

Uses

Used in Dye Industry:
7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt is used as a dye for various applications due to its dark blue-purple color and solubility in water and ethanol. Its acid and alkali resistance, as well as light fastness, make it suitable for use in the dye industry.
Used in Textile Industry:
In the textile industry, 7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt is used as a colorant for fabrics. Its resistance to acids and alkalis, as well as its light fastness, make it an ideal choice for dyeing and printing processes.
Used in Analytical Chemistry:
7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt can be used as an analytical reagent in various chemical tests due to its unique chemical properties and color-changing behavior in the presence of different pH levels.
Used in Pharmaceutical Industry:
7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt may also find applications in the pharmaceutical industry, where its unique chemical structure and properties can be utilized for the development of new drugs or as a component in drug formulations.
Used in Research and Development:
7-Hydroxy-8-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-1,3-naphthalenedisulfonic acid trisodium salt can be used in research and development for studying its chemical properties, interactions with other compounds, and potential applications in various industries.

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, respectively with the 7-Hydroxynaphthalene-1,3-disulfonic acid and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.

Standard

Acid Resistance

Fading

Stain

AATCC

Check Digit Verification of cas no

The CAS Registry Mumber 6507-84-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,0 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6507-84:
(6*6)+(5*5)+(4*0)+(3*7)+(2*8)+(1*4)=102
102 % 10 = 2
So 6507-84-2 is a valid CAS Registry Number.

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