133049-44-2 4-Aminobutane-1,1-diphosphonate-Gd-dtpa Dtpa-4-aminobutane-1,1-diphosphonate Gadoliante(5-), (9,12,15-tris(carboxymethyl)-1,1-dihydroxy-7-oxo-2-phosphono-6,9,12,15-tetraaza-1-phosphaheptadecan-17-oic acid 1 -oxidato-N9,N12,N15,O7,O9,O12,O15,O17)-, pentahydrogen Gddtpa-bdp