CAS 84906-81-0 appears in our catalog under these names: 2-Hydroxyquinoline-4-carboxylic acid 97%, 2-HYDROXYQUINOLINE-4-CARBOXYLIC ACID, 9&, 2-Hydroxyquinoline-4-carboxylic acid, 97%, 97%, 2-Hydroxyquinoline-4-carboxylic acid, 97%. Offered by: Ambeed, Sigma-Aldrich, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 25g, 100g, 500g, 1000g, 10G.