6420-09-3

Basic information

• Product Name: 5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt
• Synonyms: 5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt;5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt;C.I.23710;C.I.Direct Blue 21;Direct Blue BX
• CAS NO: 6420-09-3
• Molecular Formula: C34H27N5O11S3
• Molecular Weight: 801.79
• Mol File: 6420-09-3.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt(6420-09-3)
• EPA Substance Registry System: 5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt(6420-09-3)

Safety Data

• Hazardous Substances Data: 6420-09-3(Hazardous Substances Data)

Usage

Preparation

3,3′-Dimethylbenzidine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, and then and 4-Hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications

dark red to blue light blue. Soluble in water for the navy, slightly soluble in ethanol is shallow purple, slightly soluble in soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid in blue, diluted red for purple; In the nitric acid blue, to brown. The dye solution to join strong hydrochloric acid for purple, precipitation; Add thick sodium hydroxide solution for wine red, have precipitation. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 5 3-4 1 1-2 2 AATCC 3 3 2 2 3

Standard

Acid Resistance

Fading

Stain

ISO

5

AATCC

3