Synonyms: Phosphonicacid, [1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayltetrakis(methylene)]tetrakis-(9CI); 1,4,7,10-Tetraazacyclododecane, phosphonic acid deriv.;1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetrakis(methylenephosphonic acid);1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetramethylenephosphonic acid;1,4,7,10-Tetraazacyclododecane-N,N',N'',N'''-tetramethylenephosphonic acid;DOTMP; DOTP;N,N',N'',N'''-Tetrakis(phosphonomethyl)-1,4,7,10-tetraazacyclododecane; NSC681106