CAS 202197-73-7 appears in our catalog under these names: 4–Oxo–3，4–dihydroquinazoline–7–carboxylic acid, 3,4-Dihydro-4-oxo-7-quinzolinecarboxylic acid, 95%, 4-Oxo-3H-quinazoline-7-carboxylic acid, 95%, 4-Oxo-3,4-dihydroquinazoline-7-carboxylic acid, 98%, 3,4-DEHYDRO-4-OXO-7-QUINZOLINECARBOXYLIC ACID, 95%. Offered by: GLPBio, Combi-blocks, Ambeed, Chemat, BLDpharm. Available pack sizes: 100mg, 1g, 250mg, 5g.