Tozasertib (VX-680) Synonyms: MK-0457 Catalog No.S1048 Purity:99.99% Tozasertib (VX-680) is a pan-Aurora inhibitor, mostly against Aurora A with Kiapp of 0.6 nM in a cell-free assay, less potent towards Aurora B/Aurora C and 100-fold more selective for Aurora A than 55 other kinases. The only…