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2007-03-13 19:24 Andervik 317×118×8 (3328 bytes) I drew this picture using the chemical drawing program "chemdraw".
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{{Information |Description={{en|Purine synthesis from formamide. Drawn using the chemical drawing program "chemdraw".}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia] |Date=2007-03-13 (original upload date) |Author=Original uploader was