Potent MTH1 inhibitor (Kd = 49 nM). Inhibits Ras-induced malignant transformation and increases α-actin promoter-driven CAT activity in Ras-transformed cells. Has no effect on Ras-induced ERK and JNK activation. Inhibits Ras-induced membrane ruffling in REF-52 fibroblasts and blocks anchorage-independent growth of Ras-transformed tumor cell lines. Also induces DNA damage in SW480 colon cancer cells. Purity 99%. MW (observed): 316.35