Synonyms: 1,3-Propanediamine,N,N'-bis(2-aminoethyl)- (8CI,9CI); 1,3-Bis(2-aminoethylamino)propane;1,3-Bis[(2'-aminoethyl)amino]propane; 1,4,8,11-Tetraazaundecane;1,9-Diamino-3,7-diazanonane; 2,3,2-Tet; 3,7-Diaza-1,9-diaminononane;3,7-Diazanonane-1,9-diamine; Ethylene(trimethylene)ethylenetetramine;N,N'-Bis(2-aminoethyl)-1,3-propanediamine; N,N'-Bis(2-aminoethyl)propane-1,3-diamine;NSC 19173