Keywords: 1-pentene.svg 1-pentene structure made using BKchem en wikipedia Tomas_er CommonsHelper 2007-02-01 Ampzapper wikipedia en Ampzapper original upload log page en wikipedia 1-pentene svg 2007-02-01 05 15 Ampzapper 1107×385×0 931 bytes <nowiki>1-pentene structure made using BKchem</nowiki> Pent-1-ene |