Photoresist Chemicals 2,4(1H,3H)-Pyrimidinedione, 6-[(3-ethyl-4-methylphenyl)amino]-3-[3-[[[5-(methylthio)-1,3,4-thiadiazol- 2-yl]methyl]thio]propyl]- Cas：591771-17-4 Molecular Formula：C20H25N5O2S3