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HomeProduct name list2-Naphthalenesulfonic acid, 3,3'-[azoxybis(3,1-phenyleneazo)]bis[7-amino-4-hydroxy-, disodium salt

2-Naphthalenesulfonic acid, 3,3'-[azoxybis(3,1-phenyleneazo)]bis[7-amino-4-hydroxy-, disodium salt

  • CAS NO.:6661-22-9
  • Empirical Formula: C32H25N8NaO9S2
  • Molecular Weight: 752.71
  • EINECS: 613-954-3
2-Naphthalenesulfonic acid, 3,3'-[azoxybis(3,1-phenyleneazo)]bis[7-amino-4-hydroxy-, disodium salt Structural

What is 2-Naphthalenesulfonic acid, 3,3'-[azoxybis(3,1-phenyleneazo)]bis[7-amino-4-hydroxy-, disodium salt?

Preparation

(a), M-nitroaniline diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, then use glucose and sodium hydroxide solution will nitro reduction; (b) 3-(3-(3-Aminophenyl)-1-oxadiaziridin-2-yl)benzenamine?double nitriding, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid (2 Moore) coupled.

Properties and Applications

dark red Claret to light purple. Soluble in water for palm light orange, slightly soluble in alcohol. The strong sulfuric acid for blu-ray red, diluted light orange for subtle stitching. The dye solution to join strong hydrochloric acid for red orange; Add thick sodium hydroxide solution for palm light orange

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 3 1 4 4-5
AATCC 5 5 2 3 4

Safety information for 2-Naphthalenesulfonic acid, 3,3'-[azoxybis(3,1-phenyleneazo)]bis[7-amino-4-hydroxy-, disodium salt

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