1-[2-(2-Hydroxyethoxy)ethyl]piperazine13349-82-136 % similar 4-(Pyrrolidin-3-yl)morpholine53617-37-136 % similar Morpholin-4-yl-piperazin-1-yl-methanone98834-08-336 % similar Tetrahydrofuran109-99-936 % similar Pyrrolidine123-75-136 % similar Azetidine503-29-736 % similar Oxetane503-30-036 % similar 1,4-Dioxa-8-azaspiro(4.5)decane177-11-735 % similar 2-Oxa-7-azaspiro[3.5]nonane241820-91-735 % similar Cyclen tetrahydrochloride10045-25-733 % similar Piperidine110-89-433 % similar Azepane111-49-933 % similar Azocane1121-92-233 % similar Arpezine142-63-233 % similar Piperazine hydrochloride142-64-333 % similar Tetrahydropyran142-68-733 % similar 1,4,8,12-Tetraazacyclopentadecane15439-16-433 % similar Cyclam295-37-433 % similar 4-Methoxypiperidine4045-24-333 % similar 1,4-Diazacycloheptane505-66-833 % similar