2,3-Dimethylbutadiene-1,3 cas no:513-81-5

Name2,3-Dimethylbutadiene-1,3
CAS513-81-5
Synonyms2,3-Dimethyl-1,3-butadiene
EINECS(EC#)208-172-0
Molecular FormulaC6H10
Molecular Weight82.14

refractive indexn20/D 1.438(lit.)
storage temp2-8°C

Hazardclass3

Hazard F
Risk R11;R65
Safety

Forms explosive polymeric peroxides on exposure to air. Explodes on contact with thiazyl fluoride. Ignites on contact with oxygen + ozone above −78°C. When heated to decomposition it emits acrid smoke and fumes. 
Hazard Codes:
F
Risk Statements:
R11:Highly flammable. 
Safety Statements:
S16:Keep away from sources of ignition. 
S23:Do not breathe vapour.
RIDADR: UN 3295 3/PG 2
WGK Germany: 3
F:
F 9 Keep under nitrogen. 
HazardClass: 3
PackingGroup: II