Basic information Safety Supplier Related

Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(3-aminophenyl)-7-[(2,4-dimethylphenyl)azo]-6-hydroxy-, monosodium salt

Basic information Safety Supplier Related

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

Product Name:
Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(3-aminophenyl)-7-[(2,4-dimethylphenyl)azo]-6-hydroxy-, monosodium salt
Synonyms:
  • Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(3-aminophenyl)-7-[(2,4-dimethylphenyl)azo]-6-hydroxy-, monosodium salt
  • C.I.Direct Red 168:C.I.19575
  • Direct Red 168
CAS:
6404-53-1
MF:
C25H19N4NaO4S2
MW:
526.56253
EINECS:
613-419-4
Mol File:
6404-53-1.mol
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Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(3-aminophenyl)-7-[(2,4-dimethylphenyl)azo]-6-hydroxy-, monosodium salt Usage And Synthesis

Preparation

2,4-Dimethylbenzenamine diazo, and 2-(3-Aminophenyl)-6-hydroxynaphtho[2,1-d]thiazole-8-sulfonic acid coupling.

Properties and Applications

red. Soluble in water for red or orange brown, slightly soluble in ethanol for red orange. The strong sulfuric acid for product red, diluted becomes shallow or for red orange. The dye solution to join strong sodium hydroxide solution have orange brown precipitation; Join strong hydrochloric acid have article red precipitate or red precipitate.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3-4 5 2 3 3-4

Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(3-aminophenyl)-7-[(2,4-dimethylphenyl)azo]-6-hydroxy-, monosodium saltSupplier