"4-[5-(2-Hydroxyphenyl)-3-(6-hydroxyphenyl-2,3,4,5-d4)-1H-1,2,4-triazol-1-yl]benzoic Acid & 4-[3-(2-hydroxyphenyl)-5-(6-hydroxyphenyl-2,3,4,5-d4)-1H-1,2,4-triazol-1-yl]benzoic Acid (1:1);",Deferasirox-d4 (major)(Mixture of 6-hydroxyphenyl-d4 isomers),Labelled orally active tridentate iron chelator.,Deferasirox Stable Isotopes