Pazopanib- 13 C,d 3 (hydrochloride) is the deuterium and 13 C labeled Pazopanib hydrochloride. Pazopanib Hydrochloride (GW786034 Hydrochloride) is a novel multi-target inhibitor of VEGFR1 , VEGFR2 , VEGFR3 , PDGFRβ , c-Kit , FGFR1 , and c-Fms with an IC50 of 10, 30, 47, 84, 74, 140 and 146 nM, respectively.