503-17-3 2-Butyne 2-Butyne

Synonyms： Dimethylacetylene; but-2-yne
CAS Number：503-17-3
EINECS：207-962-2
Molecular Formula：C₄H₆
Molecular Weight：54.0904
InChI：InChI=1/C4H6/c1-3-4-2/h1-2H3
Molecular Structure：
Density：0.694g/cm³
Boiling point：25.6°C at 760 mmHg
Refractive index：1.393
Vapour Pressur：745mmHg at 25°C
Hazard Symbols:
Risk Codes： R12:Extremely flammable.;
R36/37:Irritating to eyes and respiratory system.;
Safety Description： S16:Keep away from sources of ignition - No smoking.;
S23:Do not inhale gas/fumes/vapour/spray.;
S29:Do not empty into drains.;
S36:Wear suitable protective clothing.;
S9:Keep container in a well-ventilated place.;