هذا الملف موجود على ويكي كومونز, ويمكن استخدامه في مشاريع ويكيميديا الأخرى. لرؤية هذا الملف على ويكي كومنز اتبع هذا الرابط.
Chemical structure of 1-butene
H Padleckas created this image file on March 11, 2005 especially for use in the article "Isomers of Butene" in Wikipedia. H Padleckas 19:09, 11 Mar 2005 (UTC)
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