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HomeProduct name listsodium 4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonate

sodium 4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonate

  • CAS NO.:3179-84-8
  • Empirical Formula: C16H10N3NaO7S
  • Molecular Weight: 411.32127
  • MDL number: MFCD01658050
  • EINECS: 2216634
  • Update Date: 2023-05-04 15:14:05
sodium 4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonate Structural

What is sodium 4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonate?

Preparation

3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid diazotization, and Naphthalen-2-ol coupling.

Properties and Applications

red light navy blue to black. Soluble in water for purple to black, right amount soluble in ethanol for red light purple, slightly soluble in Acetone. In concentrated sulfuric acid to red light purple, after dilution to orange, red precipitation. Dye aqueous solution to join concentrated hydrochloric acid for orange; Join concentrated sodium hydroxide solution for bordeaux red.

Standard Ironing Fastness Light Fastness Fulling Persperation Fastness Soaping Water
Alkali Acid
ISO 5 6 3-4 5 4-5 4 4-5
AATCC 5 4-5 4-5 4-5 4-5

Safety information for sodium 4-hydroxy-3-[(2-hydroxy-1-naphthyl)azo]-5-nitrobenzenesulphonate

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