BLU-9931 BLU-9931 (CAS No.: 1538604-68-0), a potent, highly selective, and irreversible fibroblast growth factor receptor 4 (FGFR4) inhibitor with an IC50 of 3 nM and a Kd of 6 nM. BLU-9931 has significant antitumor activity. >98%... December 12, 2021By sydchemComments Off Read more...