3,12-Bis(4-(4-nitrophenyl)-1-oxobutyl)-3,12-diaza-6,9-diazoniadispiro(5.2.5.2)hexadecane 2Cl 3,12-Diaza-6,9-diazoniadispiro(5.2.5.2)hexadecane, 3,12-bis(4-(4-nitrophenyl)-1-oxobutyl)-, dichloride 95461-37-3 N,N'''-Di(gamma-(p-nitrophenyl)butyryl)dispirotripiperazinium dichloride