4,4-Dimethyl-1-phenyl-3-pyrazolidone
[CAS# 2654-58-2]

Identification

• Name: 4,4-Dimethyl-1-phenyl-3-pyrazolidone
• Synonyms: Phenidone D
• Molecular Formula: C₁₁H₁₄N₂O
• Molecular Weight: 190.24
• CAS Registry Number: 2654-58-2
• EC Number: 220-181-1

Properties

• Melting point: 166-169 °C
• Flash point: 195 °C
• Water solubility: soluble

Safety Data

• Hazard Symbols: T
• Risk Statements: R25;R36/37/38;R43
• Safety Statements: S24;S26;S28A;S37/39

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	2	H300
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Skin sensitization	Skin Sens.	1	H317
Specific target organ toxicity - single exposure	STOT SE	3	H335
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412

• Transport Information: UN 2811