4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt is a complex organic compound with a unique chemical structure. It is characterized by its red light blue color and its solubility in water, ethanol, and strong sulfuric acid. 4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt exhibits resistance to acid and alkali, as well as light fastness, making it suitable for various applications.

6661-87-6

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Basic information
1. Product Name: 4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt
2. Synonyms: 4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt;C.I.34095;C.I.Direct Blue 121;Diaphtogene Blue IBR
3. CAS NO:6661-87-6
4. Molecular Formula:
5. Molecular Weight: 0
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 6661-87-6.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-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt(6661-87-6)
11. EPA Substance Registry System: 4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt(6661-87-6)
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: 6661-87-6(Hazardous Substances Data)

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6661-87-6 Usage

Uses

Used in Dye Industry:
4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt is used as a dye for its red light blue color. Its solubility in water and ethanol makes it suitable for use in various dyeing processes.
Used in Textile Industry:
In the textile industry, 4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt is used as a colorant for fabrics. Its acid and alkali resistance, as well as light fastness, make it an ideal choice for染色 (dyeing) and 染色牢度 (color fastness) in textiles.
Used in Paper Industry:
4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt is used as a colorant in the paper industry. Its resistance to acid and alkali, as well as its light fastness, make it suitable for use in the production of colored paper and other paper products.
Used in Plastics Industry:
In the plastics industry, 4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt is used as a colorant for various plastic products. Its acid and alkali resistance, as well as light fastness, make it an ideal choice for 染色 (dyeing) and 染色牢度 (color fastness) in plastics.
Used in Cosmetics Industry:
4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt is used as a colorant in the cosmetics industry. Its unique red light blue color and solubility in water and ethanol make it suitable for use in various cosmetic products, such as lipsticks, eyeshadows, and nail polishes.
Used in Ink Industry:
In the ink industry, 4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt is used as a colorant for various types of inks. Its acid and alkali resistance, as well as light fastness, make it an ideal choice for 墨水 (ink) production and 墨水牢度 (ink fastness).

Preparation

2-(4-Aminophenylamino)-2-oxoacetic acid diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling, and then 2-(4-Aminophenylamino)-2-oxoacetic acid hydrolysis base.

Standard

Acid Resistance

Fading

Stain

ISO

Check Digit Verification of cas no

The CAS Registry Mumber 6661-87-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,6 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 6661-87:
(6*6)+(5*6)+(4*6)+(3*1)+(2*8)+(1*7)=116
116 % 10 = 6
So 6661-87-6 is a valid CAS Registry Number.

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