Piperazine110-85-0100 % similar 1,4,7-Triazacyclononane4730-54-5100 % similar Polyethylenimine9002-98-6100 % similar 1,4,7,10-Tetraazacyclododecane, hydrochloride (1:4)10045-25-767 % similar Arpezine142-63-267 % similar Piperazine hydrochloride142-64-367 % similar Cyclam295-37-467 % similar 1,4-Diazacycloheptane505-66-867 % similar Pyrrolidine123-75-156 % similar Imidazolidine504-74-556 % similar Ethylenediamine-ethylenimine copolymer25987-06-855 % similar Piperidine110-89-450 % similar Azepane111-49-950 % similar Triethylenetetramine112-24-350 % similar Tetraethylenepentamine112-57-250 % similar Azocane1121-92-250 % similar Pentaethylenehexamine4067-16-750 % similar 2,2′-(1,2-Ethanediyldiimino)bis[ethanol]4439-20-750 % similar N,N′-Bis(3-aminopropyl)ethylenediamine10563-26-543 % similar Morpholine110-91-842 % similar