4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt
- CAS NO.:6405-98-7
- Empirical Formula: C30H26N5NaO5S
- Molecular Weight: 591.62
What is 4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt?
Preparation
3,3′-Dimethylbenzidine double nitriding, respectively with the 4-Hydroxynaphthalene-1-sulfonic acid and Resorcinol coupling .
Properties and Applications
red. Soluble in water is palm red light. The strong sulfuric acid for blue, purple precipitation after diluted; In a dilute acetic acid with brown in the precipitation. The dye solution to join strong hydrochloric acid has the purple precipitation; Add thick sodium hydroxide solution no change.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
AATCC | 2 | 5 | 1-2 | 2-3 | 1-2 |
Safety information for 4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt
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disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate
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