Basic

CAS No.	590-18-1
Product Name	cis-2-butene
Synonyms	CIS-BUTENE-2; (2Z)-but-2-ene
Molecular Formula	C4H8
Molecular Weight	56.1063

Physical property

Density	0.636g/cm3
Melting point	-139℃
Boiling point	3.7°C at 760 mmHg
Refractive index	1.384

Hazard Symbols	F+:Highly flammable;
Risk Codes	R12:;
Safety Description	S9:; S16:; S33:;