573-07-9

Basic information

• Product Name: 6-amino-5-hydroxynaphthalene-1-sulphonic acid
• Synonyms: 6-amino-5-hydroxynaphthalene-1-sulphonic acid;2-Amino-1-Hydroxynaphthalen-5-Suphonic Acid;6-Amino-5-hydroxy-1-naphthalenesulfonic acid;6-Amino-5-hydroxy-1-naphthylsulfonic acid;5-Hydroxy-6-amino-1-naphthalenesulfonic acid;6-amino-5-hydroxy-naphthalene-1-sulfonic acid;6-amino-5-hydroxynaphthalene-1-sulfonic acid;6-azanyl-5-hydroxy-naphthalene-1-sulfonic acid
• CAS NO: 573-07-9
• Molecular Formula: C₁₀H₉NO₄S
• Molecular Weight: 239.24776
• EINECS: 209-347-4
• Product Categories: Intermediates of Dyes and Pigments
• Mol File: 573-07-9.mol
• Article Data: 3

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 1.627g/cm³
• Refractive Index: 1.748
• PKA: -0.24±0.40(Predicted)
• CAS DataBase Reference: 6-amino-5-hydroxynaphthalene-1-sulphonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 6-amino-5-hydroxynaphthalene-1-sulphonic acid(573-07-9)
• EPA Substance Registry System: 6-amino-5-hydroxynaphthalene-1-sulphonic acid(573-07-9)

Safety Data

• Hazardous Substances Data: 573-07-9(Hazardous Substances Data)

Usage

InChI:InChI=1/C10H9NO4S/c11-8-5-4-6-7(10(8)12)2-1-3-9(6)16(13,14)15/h1-5,12H,11H2,(H,13,14,15)

Upstream product

• 117-59-9 1-hydroxynaphthalene-5-sulphonic acid 
• 23253-13-6 2-nitroso-1-naphthol-5-sulfonic acid 
• 7647-01-0 hydrogenchloride 

Downstream Products

• 606-41-7 2-amino-1-naphthol 
• 94386-30-8 1,2-Naphthochinon-2-diazid-5-sulfonsaeure 

Relevant articles and documents

Method for preparing amino-naphthol sulfonic acid with transfer hydrogenation method

The invention provides a method for preparing amino-naphthol sulfonic acid with a transfer hydrogenation method. The method is used for preparing amino-naphthol sulfonic acid by performing transfer hydrogenation reduction on nitroso or nitro-naphthol sulfonic acid and comprises the following steps: S110: sequentially adding the nitroso or nitro-naphthol sulfonic acid, an inert solvent, a catalyst and a hydrogen source in a reaction vessel, and performing transfer hydrogenation reduction at the temperature ranging from 20 DEG C below zero to 120 DEG C, wherein the hydrogenation reaction time is 0.5-10h; and S120: after reaction is complete, performing solid-liquid separation, and after concentrating separated liquid, performing acidification and product separation to acquire the required amino-naphthol sulfonic acid. By adopting a process for preparing the amino-naphthol sulfonic acid with the transfer hydrogenation method, operation is simple and convenient; the quality of a product is good; and a product is obtained by filtering and separating the catalyst after the reaction is finished, the catalyst and the solvent can be recycled after being simply treated, so that the pollution problem is solved, and the process is an environment-friendly green production process.

Unsymmetrical 1:2-chromium complexes containing an azo compound and an azomethine compound

Compounds of the formula: STR1 WHICH ARE EMINENTLY SUITABLE FOR DYEING NATURAL AND SYNTHETIC POLYAMIDES AND FOR COLORING SURFACE COATINGS. Dyeings on textile material are distinguished by very good lightfastness and very good fastness to wet treatments, for example fastness to water, perspiration, sea water and washing.