Photoresist Chemicals Pyrido[2,3-d]pyrimidin-7(8H)-one, 8-(2,6-difluorophenyl)-2-[[2-hydroxy-1-(hydroxymethyl)ethyl]amino]-4-[3-( methylthio)phenyl]- Cas：911370-37-1 Molecular Formula：C23H20F2N4O3S