Photoresist Chemicals 3H-1,2,4-Triazol-3-one, 4-[4-[2,6-dichloro-4-[(3,3-dichloro-2-propenyl)oxy]phenoxy]butyl]-2-(3,5- difluorophenyl)-2,4-dihydro- Cas：870533-52-1 Molecular Formula：C21H17Cl4F2N3O3