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HomeProduct name list1H-Indolesulfonic acid, 3,3'-[carbonylbis(imino-4,1-phenyleneazo)]bis[2-methyl-, disodium salt

1H-Indolesulfonic acid, 3,3'-[carbonylbis(imino-4,1-phenyleneazo)]bis[2-methyl-, disodium salt

  • CAS NO.:1324-42-1
  • Molecular Weight: 0
  • EINECS: 603-592-4

What is 1H-Indolesulfonic acid, 3,3'-[carbonylbis(imino-4,1-phenyleneazo)]bis[2-methyl-, disodium salt?

Preparation

N-(4-aminophenyl)acetamide diazo, and 2-Methyl-1H-indole-5-sulfonic acid?coupling, and then will the hydrolysis of amino acylation, again will get the amino nitrogen compounds for light accidentally gasification.

Properties and Applications

dark yellow. Soluble in water for golden brown, and adequate soluble in ethanol olive yellow. The strong sulfuric acid for yellow brown, after dilution is purple. Dye with strong hydrochloric acid solution for the red light brown, have precipitation; Add thick sodium hydroxide solution for gold orange.

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

Safety information for 1H-Indolesulfonic acid, 3,3'-[carbonylbis(imino-4,1-phenyleneazo)]bis[2-methyl-, disodium salt

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