Description: CH5126766 is a member of the class of coumarins that is 4-methyl-7-[(pyrimidin-2-yl)oxy]coumarin carrying an additional [2-[(methylaminosulfonyl)amino]-3-fluoropyridin-4-yl]methyl substituent at position 3. It has a role as an EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor and an antineoplastic agent. It is an aryloxypyrimidine, a member of coumarins, a member of pyridines, an organofluorine compound and a member of sulfamides.