1,6-Naphthalenedisulfonic acid, 8-hydroxy-7-[[4-(6-methyl-2-benzothiazolyl)phenyl]azo]-, disodium salt

CAS No.
5858-74-2
Chemical Name:
1,6-Naphthalenedisulfonic acid, 8-hydroxy-7-[[4-(6-methyl-2-benzothiazolyl)phenyl]azo]-, disodium salt
Synonyms
Direct Red 47;C.I.Direct Red 47:C.I.14985;1,6-Naphthalenedisulfonic acid, 8-hydroxy-7-[[4-(6-methyl-2-benzothiazolyl)phenyl]azo]-, disodium salt
CBNumber:
CB04748384
Molecular Formula:
C24H15N3Na2O7S3
Molecular Weight:
599.56634
MDL Number:
MOL File:
5858-74-2.mol

1,6-Naphthalenedisulfonic acid, 8-hydroxy-7-[[4-(6-methyl-2-benzothiazolyl)phenyl]azo]-, disodium salt Chemical Properties,Uses,Production

Preparation

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

Properties and Applications

blue light pink. Soluble in water for pink to red, and adequate soluble in alcohol. The strong sulfuric acid to red light purple, for dark orange red after diluted. The dye solution to join strong hydrochloric acid have big red precipitate; Add thick sodium hydroxide solution have sauce red precipitate.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3-4 3 3 1 1-2
AATCC 4 1 3 1 1

1,6-Naphthalenedisulfonic acid, 8-hydroxy-7-[[4-(6-methyl-2-benzothiazolyl)phenyl]azo]-, disodium salt Preparation Products And Raw materials

1,6-Naphthalenedisulfonic acid, 8-hydroxy-7-[[4-(6-methyl-2-benzothiazolyl)phenyl]azo]-, disodium salt C.I.Direct Red 47:C.I.14985 Direct Red 47 5858-74-2