CAS 51953-17-4 appears in our catalog under these names: 4–Hydroxypyrimidine, 4(3H)-Pyrimidone, 4(3H)-Pyrimidone, 98+%, Pyrimidin-4(1H)-one 98%, 4(3H)-Pyrimidone, 98%, 98%. Offered by: GLPBio, Biosynth, Thermo Scientific (Acros), Ambeed, Chemat. Available pack sizes: 25g, 5g, 50g, 100g, 250g, 10g, 1g.