Basic information Safety Supplier Related

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

Basic information Safety Supplier Related

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

Product Name:
1,6-Naphthalenedisulfonic acid, 8-hydroxy-7-[[4-(6-methyl-2-benzothiazolyl)phenyl]azo]-, disodium salt
Synonyms:
  • 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
CAS:
5858-74-2
MF:
C24H15N3Na2O7S3
MW:
599.56634
EINECS:
611-710-0
Mol File:
5858-74-2.mol
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1,6-Naphthalenedisulfonic acid, 8-hydroxy-7-[[4-(6-methyl-2-benzothiazolyl)phenyl]azo]-, disodium salt Usage And Synthesis

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 saltSupplier