Photoresist Chemicals Urea, N-[3-(1,1-dimethylethyl)-1-(4-methylphenyl)-1H-pyrazol-5-yl]-N’-[4-[4-[(1- oxido-4-thiomorpholinyl)methyl]-3-oxo-1-cyclohexen-1-yl]-1-naphthalenyl ]- Cas:847022-42-8 Molecular Formula:C36H41N5O3S