Edaravone
[CAS# 89-25-8]

Identification

• Classification: Organic raw materials >> Ketone compound
• Name: Edaravone
• Synonyms: 3-Methyl-1-phenyl-2-pyrazolin-5-one; 1-Phenyl-3-methyl-5-pyrazolone; 2,4-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one; C.I. Developer 1
• Molecular Formula: C₁₀H₁₀N₂O
• Molecular Weight: 174.20
• CAS Registry Number: 89-25-8
• EC Number: 201-891-0

Properties

• Melting point: 127-131 ºC
• Boiling point: 287 ºC (265 mmHg)
• Water solubility: 3 g/L (20 ºC)

Safety Data

• Hazard Symbols: Xi
• Risk Codes: R36/37/38
• Safety Description: S26;S36

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin sensitization	Skin Sens.	1	H317
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H302
Eye irritation	Eye Irrit.	2	H319
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Skin sensitization	Skin Sens.	1B	H317
Chronic hazardous to the aquatic environment	Aquatic Chronic	4	H413
Skin sensitization	Skin Sens.	1A	H317
Specific target organ toxicity - single exposure	STOT SE	3	H371