3730324 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3730324 > 2 > ChemIDplus > 007325635 > 6H-Dipyrido(1,2-a:2',1'-c)(1,4)diazepinediium, 7,8-dihydro- 7325-63-5 Viologen 550 > 7325-63-5 > 007325635 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=007325635 $$$$