4-Chloro-3-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid
[CAS# 88-76-6]

Identification

• Name: 4-Chloro-3-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid
• Synonyms: 4-Chloro-3-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-benzenesulfonic acid; 1-(2-Chloro-5-sulfophenyl)-3-methyl-5-pyrazolone; 1-(2-Chloro-5-sulfophenyl)-3-methyl-2-pyrazolin-5-one; 3-Methyl-1-(2-chloro-5-sulfophenyl)-5-pyrazolone
• Molecular Formula: C₁₀H₉ClN₂O₄S
• Molecular Weight: 288.70
• CAS Registry Number: 88-76-6
• EC Number: 201-858-0

Properties

• Melting point: 344 °C

Safety Data

• Hazard Symbols: Xi
• Risk Statements: R43
• Safety Statements: S36/37

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin sensitization	Skin Sens.	1	H317
Skin corrosion	Skin Corr.	1A	H314
Skin corrosion	Skin Corr.	1C	H314