3,12-Bis(1-oxo-4-phenylbutyl)-3,12-diaza-6,9-diazoniadispiro(5.2.5.2)hexadecane dichloride 3,12-Diaza-6,9-diazoniadispiro(5.2.5.2)hexadecane, 3,12-bis(1-oxo-4-phenylbutyl)-, dichloride 95461-36-2 N,N''-Di(gamma-phenylbutyryl)dispirotripiperazinium dichloride