CAS 49671-84-3 appears in our catalog under these names: 3-(1H-1,3-Benzodiazol-2-yl)-2,3-dihydroxypropanoic acid, 95%, 3-(1H-Benzo(d)imidazol-2-yl)-2,3-dihydroxypropanoic acid, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 5g, 1g.