1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt

1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt Structure
CAS No.
5850-73-7
Chemical Name:
1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt
Synonyms
C.I.15075;Direct Red 20;C.I.Direct Red 20;Diamine rose B extra;C.I.Direct Red 20:C.I.15075;1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt;5-Chloro-4-hydroxy-3-[[4-(6-methylbenzothiazol-2-yl)phenyl]azo]-2,7-naphthalenedisulfonic acid disodium salt;5-chloro-4-hydroxy-3-[4-(6-methyl-benzothiazol-2-yl)-phenylazo]-naphthalene-2,7-disulfonic acid, disodium salt
CBNumber:
CB72352111
Molecular Formula:
Molecular Weight:
0
MOL File:
5850-73-7.mol
Modify Date:
2022/12/21 16:56:50

1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt Chemical Properties,Uses,Production

Preparation

4-(6-Methyl-2,3-dihydrobenzo[d]thiazol-2-yl)benzenamine diazo, and 8-Chloro-1-naphthol-3,6-disulfonic acid?coupling.

Properties and Applications

blue light pink. Soluble in water and ethanol for pink to product red, insoluble in other organic solvents. The strong sulfuric acid to red light purple, for the big red after diluted. The dye solution to join strong hydrochloric acid for product red; Add thick sodium hydroxide solution for purplish red color.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 4-5 2 1-2 1-2
AATCC 2 5 2 1 1

1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt Preparation Products And Raw materials

1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt 5-Chloro-4-hydroxy-3-[[4-(6-methylbenzothiazol-2-yl)phenyl]azo]-2,7-naphthalenedisulfonic acid disodium salt C.I.15075 C.I.Direct Red 20 Diamine rose B extra 5-chloro-4-hydroxy-3-[4-(6-methyl-benzothiazol-2-yl)-phenylazo]-naphthalene-2,7-disulfonic acid, disodium salt Direct Red 20 C.I.Direct Red 20:C.I.15075 5850-73-7