149986-19-6 3,12-Diaza-6,9-diazoniadispiro(5.2.5.2)hexadecane, 3,12-bis(2-((aminocarbonyl)hydrazono)-1-(hydroxyimino)propyl)-, dichloride, hydrate N,N'''-Bis(1-hydroxyimino-2-oxopropyl)-N,N''-dispirotripiperazinium dichloride semicarbazone