CAS 54221-93-1 appears in our catalog under these names: 2,6-Dimethylisonicotinic acid 98%, 2,6-Dimethyl-4-pyridinecarboxylic acid, 98%, 98%, 2,6-Dimethylisonicotinic acid, 98%. Offered by: Ambeed, Chemat, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 5g, 25g, 10g, 100g.