Photoresist Chemicals 4H-Pyrimido[1,2-a]pyrimidin-4-one, 6,7,8,9-tetrahydro-9-[2-(2-methoxyphenyl)ethyl]-8-methyl-2-(4-pyridinyl)-, monohydrochloride Cas：591219-18-0 Molecular Formula：C22H24N4O2.ClH