4645-07-2

Basic information

• Product Name: 2,4-dihydro-4-[(2-methoxyphenyl)azo]-5-methyl-2-phenyl-3H-Pyrazol-3-one
• Synonyms: 4-[(2-Methoxyphenyl)azo]-5-methyl-2-phenyl-2H-pyrazol-3(4H)-one;C.I. 127450;2,4-Dihydro-4-[(2-methoxyphenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-one;Solvent Yellow 72
• CAS NO: 4645-07-2
• Molecular Formula: C₁₇H₁₆N₄O₂
• Molecular Weight: 308.33
• EINECS: 225-074-3
• Mol File: 4645-07-2.mol
• Article Data: 0

Chemical Properties

• Melting Point: 166-167 ºC
• Boiling Point: 505.3 ºC at 760 mmHg
• Flash Point: 259.4 ºC
• Appearance: /
• Density: 1.24
• Vapor Pressure: 2.47E-10mmHg at 25°C
• Refractive Index: 1.63
• PKA: 1.35±0.70(Predicted)
• CAS DataBase Reference: 2,4-dihydro-4-[(2-methoxyphenyl)azo]-5-methyl-2-phenyl-3H-Pyrazol-3-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-dihydro-4-[(2-methoxyphenyl)azo]-5-methyl-2-phenyl-3H-Pyrazol-3-one(4645-07-2)
• EPA Substance Registry System: 2,4-dihydro-4-[(2-methoxyphenyl)azo]-5-methyl-2-phenyl-3H-Pyrazol-3-one(4645-07-2)

Safety Data

• Hazardous Substances Data: 4645-07-2(Hazardous Substances Data)

Usage

General Description

2,4-dihydro-4-[(2-methoxyphenyl)azo]-5-methyl-2-phenyl-3H-Pyrazol-3-one is a chemical compound that belongs to the class of pyrazolone azo dyes. It is commonly used as a coloring agent in various industrial applications, including textiles, plastics, and printing inks. The compound is characterized by its red to brown color and is often used in combination with other dyes to achieve specific shades. While it has no known serious health risks, it may cause skin irritation and dermatitis in some individuals, and caution should be taken when handling products containing this chemical.

InChI:InChI=1/C17H16N4O2/c1-12-16(19-18-14-10-6-7-11-15(14)23-2)17(22)21(20-12)13-8-4-3-5-9-13/h3-11,16H,1-2H3