Photoresist Chemicals 2,5-Cyclohexadien-1-one, 4,4′-[2,5-thiophenediylbis[[(4-chlorophenyl)azo]methylidyne]]bis[2,6-bis( 1,1-dimethylethyl)- Cas：821797-91-5 Molecular Formula：C46H50Cl2N4O2S