CAS 1873-59-2 appears in our catalog under these names: 4-Hydroxy-3-methylquinolin-2(1H)-one 97%, 4-Hydroxy-3-methylquinolin-2(1H)-one, 95%, 4-Hydroxy-3-methylquinolin-2(1H)-one, 97%, 97%. Offered by: Ambeed, Fluorochem, Chemat. Available pack sizes: 100mg, 250mg, 1g, 5g.