Crotononitrile
[CAS# 4786-20-3]

Identification

• Classification: Chemical reagent >> Organic reagent >> Cyanide/nitrile
• Name: Crotononitrile
• Synonyms: 2-Butenenitrile
• Molecular Formula: C₄H₅N
• Molecular Weight: 67.09
• CAS Registry Number: 4786-20-3
• EC Number: 225-335-1

Properties

• Density: 0.824
• Boiling point: 120-121 ºC
• Refractive index: 1.419
• Flash point: 16 ºC

Safety Data

• Hazard Symbols: Xn;F
• Risk Codes: R16;R26;R36/37/38
• Safety Description: S16;S26;S36

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Flammable liquids	Flam. Liq.	2	H225
Acute toxicity	Acute Tox.	4	H302
Specific target organ toxicity - repeated exposure	STOT RE	1	H372
Specific target organ toxicity - single exposure	STOT SE	1	H370
Acute toxicity	Acute Tox.	3	H301
Reproductive toxicity	Repr.	2	H361d
Acute toxicity	Acute Tox.	3	H331
Acute toxicity	Acute Tox.	4	H332
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335

• Transport Information: UN 2924