Imidazolidine504-74-5100 % similar Piperazine110-85-056 % similar 1,4,7-Triazacyclononane4730-54-556 % similar Polyethylenimine9002-98-656 % similar 1,4,7,10-Tetraazacyclododecane, hydrochloride (1:4)10045-25-742 % similar Arpezine142-63-242 % similar Piperazine hydrochloride142-64-342 % similar Cyclam295-37-442 % similar 1,4-Diazacycloheptane505-66-842 % similar N,N′-Diethylethylenediamine111-74-036 % similar Ethylenediamine-ethylenimine copolymer25987-06-836 % similar Triethylenetetramine112-24-333 % similar Tetraethylenepentamine112-57-233 % similar Pyrrolidine123-75-133 % similar Pentaethylenehexamine4067-16-733 % similar 2,2′-(1,2-Ethanediyldiimino)bis[ethanol]4439-20-733 % similar Piperidine110-89-431 % similar Azepane111-49-931 % similar Azocane1121-92-231 % similar