What is Isoprene?
{{chembox | Watchedfields = changed | verifiedrevid = 477495308 | Name = Isoprene | ImageFileL1 = Isoprene-Structure.png | ImageNameL1 = Full structural formula of isoprene | ImageFileR1 = Isoprene.svg | ImageNameR1 = Skeletal formula of isoprene | ImageFileL2 = Isoprene-3D-balls-B.png | ImageNameL2 = Ball-and-stick model of isoprene | ImageFileR2 = Isoprene-3d.png | ImageNameR2 = Space-filling model of isoprene | PIN = 2-Methylbuta-1,3-diene | OtherNames = 2-Methyl-1,3-butadiene<br />Isoprene |Section1={{Chembox Identifiers | CASNo = 78-79-5 | CASNo_Ref = {{cascite|correct|CAS}} | KEGG_Ref = {{keggcite|correct|kegg}} | KEGG = C16521 | UNII_Ref = {{fdacite|correct|FDA}} | UNII = 0A62964IBU | ChEBI_Ref = {{ebicite|correct|EBI}} | ChEBI = 35194 | PubChem = 6557 | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID = 6309 | SMILES = CC(=C)C=C | InChI = 1/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3 | InChIKey = RRHGJUQNOFWUDK-UHFFFAOYAS | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI = 1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3 | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = RRHGJUQNOFWUDK-UHFFFAOYSA-N }} |Section2={{Chembox Properties | Formula = C<sub>5</sub>H<sub>8</sub> | MolarMass = 68.12 g/mol | Density = 0.681 g/cm<sup>3</sup> | MeltingPtC = −143.95 | BoilingPtC = 34.067 }} }} '''Isoprene''' is a common [[organic compound]] produced by living things. Its full chemical name is '''2-methyl-1,3-butadiene''', and its formula is CH<sub>2</sub>=C(CH<sub>3</sub>)−CH=CH<sub>2</sub>. Isoprene is an [[saturation (chemistry)|unsaturated hydrocarbon]]. It is produced by many plants and animals (including humans). Its [[polymers]] are the main component of [[natural rubber]].<ref>{{cite journal |doi=10.1016/0160-9327(96)10014-4 |title=Isoprene synthesis by plants and animals |url=https://archive.org/details/sim_endeavour_1996-06_20_2/page/74 |journal=Endeavour |volume=20 |issue=2 |pages=74–78 |year=1996 |last1=Sharkey |first1=Thomas D. |pmid=8690002 }}</ref><ref>{{cite journal |last1=