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1-Naphthalenesulfonic acid, 6-[[5-chloro-4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-2-methoxyphenyl]azo]-5-hydroxy-, disodium salt

Basic information Safety Supplier Related

1-Naphthalenesulfonic acid, 6-[[5-chloro-4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-2-methoxyphenyl]azo]-5-hydroxy-, disodium salt Basic information

Product Name:
1-Naphthalenesulfonic acid, 6-[[5-chloro-4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-2-methoxyphenyl]azo]-5-hydroxy-, disodium salt
Synonyms:
  • 1-Naphthalenesulfonic acid, 6-[[5-chloro-4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-2-methoxyphenyl]azo]-5-hydroxy-, disodium salt
  • C.I.Acid Blue 44:C.I.21640
  • Acid Blue 44
CAS:
6374-11-4
MF:
C27H20ClN4NaO9S2
MW:
667.04
EINECS:
613-364-6
Mol File:
6374-11-4.mol
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1-Naphthalenesulfonic acid, 6-[[5-chloro-4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-2-methoxyphenyl]azo]-5-hydroxy-, disodium salt Usage And Synthesis

Preparation

2′-Methoxy-4′-amino-5′-chlorooxanilic acid diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling, hydrolysis, the grass, then diazo, and 5-Hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications

red light navy blue. Soluble in water for deep purple, rarely soluble in alcohol. The strong sulfuric acid in turquoise, diluted for purple. In water solution to join strong hydrochloric acid for blue purple; Add thick sodium hydroxide solution as dark blue.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 4-5 2 2 1 2-3

1-Naphthalenesulfonic acid, 6-[[5-chloro-4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-2-methoxyphenyl]azo]-5-hydroxy-, disodium saltSupplier