Photoresist Chemicals TIANFU-CHEM 3H-Pyrazol-3-one, 4-[4,5-dihydro-5-(6-nitro-4-oxo-4H-1-benzopyran-3-yl)-3-isoxazolyl]-1,2- dihydro-5-methyl- Cas：878631-89-1 Molecular Formula：C16H12N4O6