CAS 63542-76-7 appears in our catalog under these names: SUPER-DHB BIOREAGENT, SUITABLE FOR MATR&, Super-DHB, ≥98.0% (9:1 mixture of gentisic Acid and 2-hydroxy-5-methoxybenzoic acid), ≥98.0% (9:1 mixture of gentisic Acid and 2-hydroxy-5-methoxybenzoic acid). Offered by: Sigma-Aldrich, Chemat. Available pack sizes: 1G, 5G.