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HomeProduct name listBenzenesulfonic acid, 4-[(2-hydroxy-1-naphthalenyl)azo]-3-nitro-, monosodium salt

Benzenesulfonic acid, 4-[(2-hydroxy-1-naphthalenyl)azo]-3-nitro-, monosodium salt

  • CAS NO.:5850-82-8
  • Empirical Formula: C16H10N3NaO6S
  • Molecular Weight: 395.32187
  • EINECS: 611-679-3
Benzenesulfonic acid, 4-[(2-hydroxy-1-naphthalenyl)azo]-3-nitro-, monosodium salt Structural

What is Benzenesulfonic acid, 4-[(2-hydroxy-1-naphthalenyl)azo]-3-nitro-, monosodium salt?

Preparation

4-Amino-2-nitrobenzenesulfonic acid diazotization, with Naphthalen-2-ol coupling

Properties and Applications

red light orange. Soluble in water and ethanol for yellow light brown. The strong sulfuric acid for orange brown, with golden yellow diluted. In water solution to join strong hydrochloric acid for yellow brown; Add thick sodium hydroxide solution for red light orange brown. Can be used for wool, silk fiber dyeing etc, and can also be used to dye the leather and manufacturing organic pigments.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 4 2-3 2 2-3 1 3

Safety information for Benzenesulfonic acid, 4-[(2-hydroxy-1-naphthalenyl)azo]-3-nitro-, monosodium salt

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