1.0 2010-04-08 22:07:25 UTC 2025-11-18 23:03:39 UTC FDB007055 Polyisoprene Isoprene, also known as 2-methyl-1,3-butadiene or 2-methyldivinyl, is a member of the class of compounds known as branched unsaturated hydrocarbons. Branched unsaturated hydrocarbons are hydrocarbons that contains one or more unsaturated carbon atoms, and an aliphatic branch. Isoprene can be found in carrot, sweet orange, and wild carrot, which makes isoprene a potential biomarker for the consumption of these food products. Isoprene, or 2-methyl-1,3-butadiene, is a common organic compound with the formula CH2=C(CH3)−CH=CH2. In its pure form it is a colorless volatile liquid. Isoprene is produced by many plants, and its polymers are the main component of natural rubber. C. G. Williams named the compound in 1860 after obtaining it from thermal decomposition (pyrolysis) of natural rubber; he correctly deduced the empirical formula C5H8 . cis-1,4-Polyisoprene rubber IR Isoprene Isoprene rubber Natsyn 2200 Natural rubber Poly(isoprene), cis Rubber (all-cis) Trans-polyisoprene C5H8 68.117 68.062600256 2-methylbuta-1,3-diene isoprene 9003-31-0 CC(=C)C=C InChI=1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3 RRHGJUQNOFWUDK-UHFFFAOYSA-N belongs to the class of organic compounds known as branched unsaturated hydrocarbons. These are hydrocarbons that contains one or more unsaturated carbon atoms, and an aliphatic branch. Branched unsaturated hydrocarbons Organic compounds Hydrocarbons Unsaturated hydrocarbons Branched unsaturated hydrocarbons Aliphatic acyclic compounds Alkadienes Unsaturated aliphatic hydrocarbons Acyclic olefin Aliphatic acyclic compound Alkadiene Branched unsaturated hydrocarbon Olefin Unsaturated aliphatic hydrocarbon Hemiterpenoids (C5) a carbohydrate alkadiene hemiterpene logp 2.22 ALOGPS logs -1.58 ALOGPS solubility 1.80e+00 g/l ALOGPS logp 1.88 ChemAxon iupac 2-methylbuta-1,3-diene ChemAxon average_mass 68.117 ChemAxon mono_mass 68.062600256 ChemAxon smiles CC(=C)C=C ChemAxon formula C5H8 ChemAxon inchi InChI=1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3 ChemAxon inchikey RRHGJUQNOFWUDK-UHFFFAOYSA-N ChemAxon polar_surface_area 0 ChemAxon refractivity 24.58 ChemAxon polarizability 8.58 ChemAxon rotatable_bond_count 1 ChemAxon acceptor_count 0 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 102862 Specdb::CMs 123682 Specdb::EiMs 490 Specdb::NmrOneD 2641 Specdb::NmrOneD 3328 Specdb::MsMs 92421 Specdb::MsMs 92422 Specdb::MsMs 92423 Specdb::MsMs 156030 Specdb::MsMs 156031 Specdb::MsMs 156032 Specdb::MsMs 3440773 Specdb::MsMs 3440774 Specdb::MsMs 3440775 Specdb::MsMs 3441538 Specdb::MsMs 3441539 Specdb::MsMs 3441540 Winter savory Type 1 specific Satureja montana 49988