Photoresist Chemicals Benzamide, N-[[4-[(4-butylphenyl)ethynyl]phenyl]methyl]-4-(1,1-dimethylethyl)-N-(2,2- dimethyl-4-oxo-4H-1,3-benzodioxin-6-yl)- Cas：843676-03-9 Molecular Formula：C40H41NO4