Keywords: 3-Methyl-1-buten.svg Skelettformel von 3-Methyl-but-1-en 2-Methyl-but-3-en Skeletal structure of 3-methyl-1-butene isopropylethylene own made 2008-01-25 <br/> original text 1 25 01 2008 Roland chem original upload log de wikipedia Hystrix CommonsHelper page de wikipedia 3-Methyl-1-buten svg 2008-01-25 12 52 Roland chem 70×42× 3300 bytes <nowiki> Andere Versionen </nowiki> 3-Methyl-1-butene |