Isoprene
Isoprene is an organic compound with the molecular formula C5H8.
- Formula
- C5H8
- Molar mass
- 68.12 g/mol
- Also known as
- 2-methylbuta-1,3-diene, 2-Methyl-1,3-butadiene, Isopentadiene, 2-Methylbutadiene, 2-Methyldivinyl, 1,3-Butadiene, 2-methyl-
Overview
Isoprene is an organic compound with the molecular formula C5H8.
Identifiers
- Formula
- C5H8
- Molar mass
- 68.12 g/mol
- Also known as
- 2-methylbuta-1,3-diene, 2-Methyl-1,3-butadiene, Isopentadiene, 2-Methylbutadiene, 2-Methyldivinyl, 1,3-Butadiene, 2-methyl-
Chemical identifiers
- SMILES
- CC(=C)C=C
- InChI
- InChI=1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
- PubChem CID
- 6557
Properties
- Melting Point
- -145.95 °C
- Boiling Point
- 34.067 °C
- Density
- 0.679 g/cu cm at 20 °C
- Water solubility
- In water, 642 mg/L at 25 °C
References
- PubChem Compound Summary: Isoprene (CID 6557)National Center for Biotechnology Information · PubChem
Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.
- Hazardous Substances Data Bank (HSDB): Isoprene — melting pointHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6557#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Cambridge, UK: Royal Society of Chemistry, 2013., p. 964
- Hazardous Substances Data Bank (HSDB): Isoprene — boiling pointHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6557#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Cambridge, UK: Royal Society of Chemistry, 2013., p. 964
- Hazardous Substances Data Bank (HSDB): Isoprene — densityHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6557#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-362
- Hazardous Substances Data Bank (HSDB): Isoprene — solubilityHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6557#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: McAuliffe C; J Phys Chem 70: 1267-75 (1966)