CAS 20300-59-8 appears in our catalog under these names: 7-Methoxy-2-oxo-2H-chromene-3-carboxylic acid, 95-<97%, 7-Methoxy-2-oxo-2H-chromene-3-carboxylic acid, ≥97-<99%, 7–Methoxycoumarin–3–carboxylic acid, 7-Methoxycoumarin-3-carboxylic acid, 7-Methoxycoumarin-3-carboxylicacid. Offered by: Hoffman Fine Chemicals, GLPBio, TargetMol, Biosynth, TCI. Available pack sizes: 10g, 25g, 50g, 100g, 200g, 100mg, 1g, 500mg.