CAS 439141-05-6 appears in our catalog under these names: 2-(3-Methoxyphenyl)-1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid, 95%, 2-(3-Methoxyphenyl)-1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 1g, 5g.