Photoresist Chemicals Urea, N-[3-(1,1-dimethylethyl)-1-(3-methylphenyl)-1H-pyrazol-5-yl]-N’-[[2-[[3-(2 -hydroxyphenyl)-1,2,4-triazolo[4,3-a]pyridin-6-yl]thio]phenyl]methyl]- Cas:876299-14-8 Molecular Formula:C34H33N7O2S