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Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(4-aminophenyl)-7-[[4-[(4-chloro-2-sulfophenyl)azo]-3-methylphenyl]azo]-6-hydroxy-, disodium salt

Basic information Safety Supplier Related

Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(4-aminophenyl)-7-[[4-[(4-chloro-2-sulfophenyl)azo]-3-methylphenyl]azo]-6-hydroxy-, disodium salt Basic information

Product Name:
Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(4-aminophenyl)-7-[[4-[(4-chloro-2-sulfophenyl)azo]-3-methylphenyl]azo]-6-hydroxy-, disodium salt
Synonyms:
  • Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(4-aminophenyl)-7-[[4-[(4-chloro-2-sulfophenyl)azo]-3-methylphenyl]azo]-6-hydroxy-, disodium salt
  • C.I.Direct Violet 78:C.I.28720
  • Direct Violet 78
CAS:
5852-30-2
MF:
C30H22ClN6NaO7S3
MW:
733.16
EINECS:
611-691-9
Mol File:
5852-30-2.mol
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Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(4-aminophenyl)-7-[[4-[(4-chloro-2-sulfophenyl)azo]-3-methylphenyl]azo]-6-hydroxy-, disodium salt Usage And Synthesis

Preparation

2-Amino-5-chlorobenzenesulfonic acid diazo,Coupled with?m-Toluidine?, its product to diazo, and 2-(4-Aminophenyl)-6-hydroxynaphtho[2,1-d]thiazole-8-sulfonic acid coupling.

Properties and Applications

Red, purple. Moderate soluble in water for purplish red color, soluble in ethanol for product red. The strong sulfuric acid in blue, diluted red for brown. The dye solution to join strong hydrochloric acid have red light brown precipitation; Add thick Red sauce sodium hydroxide solution have precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3 5 3 3 3-4

Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(4-aminophenyl)-7-[[4-[(4-chloro-2-sulfophenyl)azo]-3-methylphenyl]azo]-6-hydroxy-, disodium saltSupplier