Allyl cyanide

Allyl cyanide
Names
	Preferred IUPAC name But-3-enenitrile
Identifiers
CAS Number	109-75-1 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	605352
ChEBI	CHEBI:183063;
ChemSpider	13876176;
ECHA InfoCard	100.003.366
EC Number	203-701-1;
PubChem CID	8009;
UNII	527U1WJJ18 ;
CompTox Dashboard (EPA)	DTXSID6021905 ;
	InChI Key: SJNALLRHIVGIBI-UHFFFAOYSA-N;
	SMILES C=CCC#N;
Properties
Chemical formula	C4H5N
Molar mass	67.091 g·mol−1
Appearance	colourless liquid
Density	0.834 g/cm3
Melting point	−87 °C (−125 °F; 186 K)
Boiling point	116 to 121 °C (241 to 250 °F; 389 to 394 K)
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Flammable, poison, irritates skin and eyes
Ingestion hazards	Toxic if swallowed.
Inhalation hazards	May be fatal if inhaled. Causes respiratory tract irritation.
Eye hazards	Causes eye irritation.
Skin hazards	Causes skin irritation.
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H226, H301, H311, H312, H315, H319
Precautionary statements	P261, P280, P301+P310, P305+P351+P338, P311
NFPA 704 (fire diamond)	4 3 0
Flash point	24 °C (75 °F; 297 K)
Autoignition; temperature	455 °C (851 °F; 728 K)
Safety data sheet (SDS)	MSDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Allyl cyanide is an organic compound with the formula CH₂CHCH₂CN. Like other small alkyl nitriles, allyl cyanide is colorless and soluble in organic solvents. Allyl cyanide occurs naturally as an antifeedant and is used as a cross-linking agent in some polymers.