A-485 (Standard) is the analytical standard of A-485 (HY-107455). This product is intended for research and analytical applications. A-485, a chemical probe, is a potent and selective catalytic inhibitor of p300/CBP with IC50s of 9.8 nM and 2.6 nM for p300 and CBP histone acetyltransferase (HAT), respectively[1].