| Identification | |
| Name: | 1,2-Butadien-1-one(9CI) |
| Synonyms: | Ethylideneketene |
| CAS: | 78957-08-1 |
| Molecular Formula: | C4H4 O |
| Molecular Weight: | 0 |
| InChI: | InChI=1/C4H4O/c1-2-3-4-5/h2H,1H3 |
| Molecular Structure: |  |
| Properties | |
| Boiling Point: | 60.7°C at 760 mmHg |
| Density: | 0.763g/cm3 |
| Refractive index: | 1.381 |
| Safety Data | |
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