CAS 17758-52-0 appears in our catalog under these names: 4-Hydroxy-5-methylpyrimidine 95%, 4-Hydroxy-5-methylpyrimidine, 95%, 95%, 5-methyl-3,4-dihydropyrimidin-4-one, 97%. Offered by: Ambeed, Chemat, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 5g, 10g, 25g.