Coumarin
[CAS# 91-64-5]

Identification

• Classification: Organic raw materials >> Hydrocarbon compounds and their derivatives >> Cyclic hydrocarbon
• Name: Coumarin
• Synonyms: 2H-1-Benzopyran-2-one
• Molecular Formula: C₉H₆O₂
• Molecular Weight: 146.14
• CAS Registry Number: 91-64-5
• EC Number: 202-086-7

Properties

• Density: 0.935
• Melting point: 68-71 °C
• Boiling point: 298 °C
• Flash point: 162 °C
• Water solubility: 1.7 g/L (20 °C)

Safety Data

• Hazard Symbols: Xn
• Risk Statements: R20/21/22;R36/37/38;R40
• Safety Statements: S26;S36/37

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin sensitization	Skin Sens.	1	H317
Acute toxicity	Acute Tox.	4	H302
Acute toxicity	Acute Tox.	3	H301
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Acute toxicity	Acute Tox.	3	H311
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412
Skin sensitization	Skin Sens.	1B	H317
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Acute toxicity	Acute Tox.	3	H331
Carcinogenicity	Carc.	2	H351
Acute toxicity	Acute Tox.	1	H300
Skin irritation	Skin Irrit.	2	H315
Serious eye damage	Eye Dam.	1	H318
Acute toxicity	Acute Tox.	4	H312
Eye irritation	Eye Irrit.	2	H319