Photoresist Chemicals 5-bromo-3-butan-2-yl-6-methyl-1H-pyrimidine-2,4-dione: 3-(3,4-dichloro phenyl)-1,1-dimethyl-urea 8071-35-0 Cas:8071-35-0 Molecular Formula:C18H23BrCl2N4O3