3727435 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3727435 > 2 > ChemIDplus > 000518161 > 21H,23H-Porphine-2-propanoic acid, 18-carboxy-20-(dihydroxymethyl)-8-ethenyl-13-ethyl-2,3-dihydro-3,7,12,17-tetramethyl-, delta-lactone 518-16-1 Chlorin 5 > 518-16-1 > 000518161 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=000518161 $$$$