Photoresist Chemicals Pyrimido[2,1-c][1,4]oxazine-2-carboxamide, 4,6,7,9-tetrahydro-3-hydroxy-9,9-dimethyl-N-[(5-methylpyrazinyl)methyl]- 4-oxo- Cas：870560-50-2 Molecular Formula：C16H19N5O4