Keywords: Norspermidine.PNG en wikipedia 2011 November 3 Molecular structure of Norspermidine Drawn by Yidele in ChemDraw 10 0 August 2007 2007-08-07 Transferred from http //en wikipedia org en wikipedia by Ronhjones Yidele at en wikipedia other versions Yidele Original upload log page en wikipedia Norspermidine PNG Upload date User Bytes Dimensions Comment 2007-08-07 21 14 UTC Yidele 2356 bytes 369×85 <small><nowiki>Molecular structure of Norspermidine Drawn by Yidele in ChemDraw 10 0 August 2007 </nowiki></small> Polyamines |