Thiomorpholine123-90-0100 % similar Thiazolidine504-78-960 % similar Piperazine110-85-042 % similar 1,4,7-Triazacyclononane4730-54-542 % similar Polyethylenimine9002-98-642 % similar Tetrahydrothiophene110-01-036 % similar Pyrrolidine123-75-136 % similar Thietane287-27-436 % similar 1,4,7,10-Tetraazacyclododecane, hydrochloride (1:4)10045-25-733 % similar Piperidine110-89-433 % similar Azepane111-49-933 % similar Azocane1121-92-233 % similar Arpezine142-63-233 % similar Piperazine hydrochloride142-64-333 % similar Thiane1613-51-033 % similar Cyclam295-37-433 % similar 1,4-Diazacycloheptane505-66-833 % similar