Basic information Safety Supplier Related

3-[(4-Formylphenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt

Basic information Safety Supplier Related

3-[(4-Formylphenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt Basic information

Product Name:
3-[(4-Formylphenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt
Synonyms:
  • 3-[(4-Formylphenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt
  • C.I.16605
  • C.I.Acid Red 19
  • 2,7-Naphthalenedisulfonic acid, 3-[(4-formylphenyl)azo]-4,5-dihydroxy-, disodium salt
  • C.I. Acid red 19, disodium salt
  • Chromazone red a
  • Levamin red gg
  • Nsc148367
CAS:
5850-58-8
MF:
C17H13N2NaO9S2
MW:
476.41
Mol File:
5850-58-8.mol
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3-[(4-Formylphenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt Usage And Synthesis

Preparation

4-Aminobenzaldehyde diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid?coupling.

Properties and Applications

colourful red blue light. Soluble in water is red. The strong sulfuric acid in blue, diluted into red; In the bright red precipitation appear in the hydrochloric acid; Sodium hydroxide solution for deep in the red.

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

3-[(4-Formylphenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium saltSupplier

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