| CAS Number | 627-19-0 |
| Catalog Description | 1-Pentyne, 99% |
| MDL Number | MFCD00009469 |
| Linear formula | CH3CH2CH2C≡CH |
| Master Molecular formula | C5H8 |
| Melting point in C | -106° |
| Boiling point in C | 40° |
| Flash point in C | -20° |
| Flash point in F | -4° |
| Refractive Index | 1.385 |
| EC Number | 210-987-1 |
| Shipping | Hazardous for shipping |
| CAS Number | 627-19-0 |
| UN# | UN3295 |
| Haz Class | 3 |
| Packing Group | II |
| Signal Word | Danger |
| Pictogram code 1 |
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| Pictogram code 2 |
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| H Phrases | H225-H304-H315-H319-H335 |
| P Phrases | P210-P301+P310-P303+P361+P353-P305+P351+P338-P405-P501A |
| TSCA | Yes |
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