Photoresist Chemicals Pyrido[2,3-d]pyrimidin-7(8H)-one, 6-bromo-8-cyclopentyl-5-methyl-2-[[4-(1-piperazinyl)phenyl]amino]-, trifluoroacetate Cas：850628-62-5 Molecular Formula：C23H27BrN6O.xC2HF3O2