| Name | 1-BUTYNE |
| Synonyms | Butyne-1 1-BUTYNE but-1-yne Ethylethyne C2H5CequivCH ETHYLACETYLENE ethylacetylene,inhibited Ethyl acetylene, inhibited |
| CAS | 107-00-6 |
| EINECS | 203-451-3 |
| InChIKey | KDKYADYSIPSCCQ-UHFFFAOYSA-N |
| Molecular Formula | C4H6 |
| Molar Mass | 54.09 |
| Density | 0.678 |
| Melting Point | -126°C |
| Boling Point | 8°C |
| Water Solubility | 2.87g/L(25 ºC) |
| Vapor Presure | 1.3962 |
| Storage Condition | 2-8°C |
| Refractive Index | 1.3962 |
| Risk Codes | R11 - Highly Flammable R12 - Extremely Flammable |
| Safety Description | S9 - Keep container in a well-ventilated place. S16 - Keep away from sources of ignition. S23 - Do not breathe vapour. S33 - Take precautionary measures against static discharges. |
| UN IDs | UN 2452 2.1 |
| WGK Germany | 3 |
| RTECS | 203-451-3 |
| Hazard Class | 2.1 |
| EPA chemical substance information | information is provided by: ofmpeb.epa.gov (external link) |