Photoresist Chemicals 1,3-Benzenediol, 4-(1-methylethyl)-6-[5-(methylsulfonyl)-4-[2-(1-oxido-3-pyridinyl)ethyl]-4H -1,2,4-triazol-3-yl]- Cas:909872-63-5 Molecular Formula:C19H22N4O5S