R-406 R-406 Synonyms: R-406;6-[[5-Fluoro-2-[(3,4,5-trimethoxyphenyl)amino]-4-pyrimidinyl]amino]-2,2-dimethyl-2H-pyrido[3,2-b]-1,4-oxazin-3(4H)-one ;6-[5-Fluoro-2-(3,4,5-trimethoxy-phenylamino)-pyrimidin-4-ylamino]-2,2-dimethyl-4H-pyrido[3,2-b][1,4]oxazin-3-one CAS NO.: 841290-80-0 Formula: C22H23N6O5F Weight: 470.45362