| hemiterpene; isoprene; β-methylbivinyl; 2-methylbutadiene; β-methylbutadiene; 2-methyl-1,3-butadiene; 2-methylbuta-1,3-diene; 2-methylbutadiene-1,3; 3-methylbutadiene-1,3; β-methyldivinyl | |
| Links: | 📏 NIST, 📖 PubMed, 📖Houben-Weyl, 2. Band (Isopren); p. 462, 601, 745, 752, 757, 825, 📖Org. Chem., v. Richter, 1. Vol (Isoprene); p. 91, |
| CAS RN: | [78-79-5] |
| Formula: | C5H8; 68.12 g/mol |
| InChiKey: | RRHGJUQNOFWUDK-UHFFFAOYSA-N |
| SMILES: | CC(=C)C=C |
| Density: | 0.681 g/mL |
| Molar volume: | 100.0 mL/mol |
| Refractive index: | 1.422 |
| Molecular refractive power: | 25.42 mL/mol |
| Dielectric constant: | 2.10 |
| Dipole moment: | 0.29 D |
| Melting point: | -144 °C |
| Boiling point: | 34 °C |
| Vapour pressure: | 62 Torr |
| Antoine equation P(Torr) vs T(°C) | |
| Critical temperature: | 211 °C |
| Critical pressure: | 3.8 atm |
| Log10 partition octanol / water: | 2.42 |