Imidazolidine504-74-5100 % similar Piperazine110-85-056 % similar Aziridine151-56-456 % similar Cyclen294-90-656 % similar 1,4,7-Triazacyclononane4730-54-556 % similar Polyethylenimine9002-98-656 % similar Cyclen tetrahydrochloride10045-25-742 % similar Arpezine142-63-242 % similar Piperazine hydrochloride142-64-342 % similar 1,4,8,12-Tetraazacyclopentadecane15439-16-442 % similar Cyclam295-37-442 % similar 1,4-Diazacycloheptane505-66-842 % similar 1,4,7-Triazacyclononane trihydrochloride58966-93-142 % 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