Basic information Safety Supplier Related

4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt

Basic information Safety Supplier Related

4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt Basic information

Product Name:
4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Synonyms:
  • 4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
  • C.I.17185
  • C.I.Acid Blue 6
  • Acid Blue 6
  • C.I.Acid Blue 6:C.I.17185
CAS:
6222-42-0
MF:
C16H14N5NaO9S2
MW:
507.42
Mol File:
6222-42-0.mol
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4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt Usage And Synthesis

Preparation

N-(4-amino-3-nitrophenyl)acetamide?diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?in acid conditions coupled, then acetaminophen hydrolysis.

Properties and Applications

navy blue. Soluble in water for dark purple, slightly soluble in alcohol in deep navy blue. In the dark for the strong sulfuric acid, diluted in red. In water solution to join strong hydrochloric acid into red; With strong sodium hydroxide solution into a navy blue.

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

4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium saltSupplier