Afbeelding:Purine chemical structure.png

Chemical structure of purine.

selfmade by cacycle
modified on March 31, 2005 from the previous version to add a missing electron pair on the # 3 atom (a nitrogen). H Padleckas 13:42, 31 Mar 2005 (UTC)

Source:

http://en.wikipedia.org/wiki/Image:Purine_chemical_structure.png

en:User:Cacycle

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