92-75-1

Basic information

• Product Name: NAPHTHOL AS-MX
• Synonyms: NAPHTHOL AS-AM C.I. NO. 37527;3-Hydroxy-N-(2',4'-dimethylphenyl)-2-naphthamide;3-Hydroxy-N-(2,4-xylyl)-2-naphthalenecarboxamide;C.I.Azoic Coupling Component 29;2,4-Dimethylanilide;N-(2,4-dimethylphenyl)-3-hydroxy-naphthalene-2-carboxamide;N-(2,4-dimethylphenyl)-3-hydroxynaphthalene-2-carboxamide;2-Hydroxy-3-naphthoic Acid m-Xylidide Naphthol AS-MX Azoic Coupling Component 29 3-Hydroxy-N-(2',4'-dimethylphenyl)-2-naphthamide
• CAS NO: 92-75-1
• Molecular Formula: C₁₉H₁₇NO₂
• Molecular Weight: 291.34
• EINECS: 202-186-0
• Product Categories: Substrates
• Mol File: 92-75-1.mol
• Article Data: 2

Chemical Properties

• Melting Point: 226 °C
• Boiling Point: 412.5ºC at 760 mmHg
• Flash Point: 203.2ºC
• Appearance: /
• Density: 1.248g/cm3
• Vapor Pressure: 2.16E-07mmHg at 25°C
• Refractive Index: 1.699
• PKA: 8.75±0.40(Predicted)
• CAS DataBase Reference: NAPHTHOL AS-MX(CAS DataBase Reference)
• NIST Chemistry Reference: NAPHTHOL AS-MX(92-75-1)
• EPA Substance Registry System: NAPHTHOL AS-MX(92-75-1)

Safety Data

• Hazardous Substances Data: 92-75-1(Hazardous Substances Data)

Usage

Preparation

2,4-Dimethylbenzenamine and 3-Hydroxy-2-naphthoic acid condensation.

Properties and Applications

brown powder, melting point for 223 ~ 225 ℃. Soluble in water. Mainly used for cotton fabrics, viscose, silk, polyamide fiber and polyester dyeing and printing. To cotton affinity low.

InChI:InChI=1/C19H17NO2/c1-12-7-8-17(13(2)9-12)20-19(22)16-10-14-5-3-4-6-15(14)11-18(16)21/h3-11,21H,1-2H3,(H,20,22)

Upstream product

• 95-68-1 2,4-Xylidine 
• 92-70-6 3-Hydroxy-2-naphthoic acid 

Downstream Products

• 1596-56-1 naphthol AS-MX phosphate 

Relevant articles and documents

Method for preparing naphthol AS series azo dye

The invention belongs to the technical field of chemical engineering, and particularly relates to a method for preparing naphthol AS series azo dye. According to the method, 2-hydroxy-3-naphthoic acid(also called 2,3-acid) and substituted aromatic amine are used as raw materials, and the naphthol AS azo dye is prepared under the catalytic action of a catalyst. In the whole reaction process, the reaction conditions are mild, no hydrogen chloride is generated, and the requirements on equipment are reduced, and therefore, the equipment investment cost is reduced. The by-product of the whole process flow is water, and no waste salt is generated, and therefore, the production process is more environmentally friendly, and the process of new and old kinetic energy conversion in China is promoted. The product purity is high and can reach 99% or above; and the product is light in color, is off-white, off-yellow or slightly red, and is high in quality.