| CAS Number | 1942-45-6 |
| Catalog Description | 4-Octyne, 99% |
| Synonym | Di-n-propylacetylene |
| MDL Number | MFCD00009471 |
| Linear formula | CH3CH2CH2C≡CCH2CH2CH3 |
| Master Molecular formula | C8H14 |
| Melting point in C | -103° |
| Boiling point in C | 131-132° |
| Flash point in C | 29° |
| Flash point in F | 84° |
| Density | 0.751 |
| Refractive Index | 1.425 |
| EC Number | 217-730-2 |
| Shipping | Hazardous for shipping |
| CAS Number | 1942-45-6 |
| 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 |
| P Phrases | P210-P241-P301+P310-P303+P361+P353-P405-P501A |
| TSCA | Yes |
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