Product introduction ：

Product name:3-Methyl-1-butene
English name:3-Methyl-1-butene
Alias:Isopropylene; isopentene
CAS RN:563-45-1
EINECS number:209-249-1
Molecular formula:C₅H₁₀
Molecular weight:70.1329

Physical and chemical properties
Melting point: -168 
Boiling point: 20 
Density: 0.627 
Refractive index: 1.3643