: 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetra(methylene phosphonic acid), 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetra(methylene phosphonic acid); 1,4,7,10-Tetraazacyclododecane, phosphonic acid deriv.; 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetramethylenephosphonic acid; DOTMP; NSC 681106; N,N',N'',N'''-Tetrakis(phosphonomethyl)-1,4,7,10-tetraazacyclododecane