CAS 66-22-8 appears in our catalog under these names: Uracil (Lamivudine EP Impurity F, Fluorouracil EP Impurity C), Uracil, >95% (HPLC), Uracil, Pyrimidine-2,4(1H,3H)-dione (Uracil), Uracil/ 99.89% (existing batch purity). Offered by: Chemat Brand, TRC, Dr. Ehrenstorfer, Mikromol, TargetMol. Available pack sizes: on request, 1g, 50mg, 5g, 25mg, 100mg, 10mM (in 1ml dmso), 1000g.