| Product Name | Propynal |
| CAS No. | 624-67-9 |
| Synonyms | Propiolaldehyde; 4-01-00-03537 (Beilstein Handbook Reference); BRN 1098318; Propargylaldehyde; Propioaldehyde; Propyn-3-al; 2-Propynal; Propiolaldehye; prop-2-ynal |
| InChI | InChI=1/C3H2O/c1-2-3-4/h1,3H |
| Molecular Formula | C3H2O |
| Molecular Weight | 54.0474 |
| Density | 0.913g/cm3 |
| Boiling point | 60°C at 760 mmHg |
| Flash point | 4.8°C |
| Refractive index | 1.388 |
624-67-9 propynal
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