Photoresist Chemicals 2H-Pyrido[1,2-a]pyrazine-7-carboxamide, 2-[(3-chlorophenyl)methyl]-1,8-dihydro-9-hydroxy-1,8-dioxo-N-[2-(2-oxo- 1-pyrrolidinyl)ethyl]- Cas：845720-74-3 Molecular Formula：C22H21ClN4O5