CAS 23012-13-7 appears in our catalog under these names: Oxazole-4-carboxylic acid, 97%, Oxazole–4–carboxylic acid, 4-Oxazolecarboxylic Acid, >98.0%(GC)(T), Oxazole-4-carboxylic acid 97%, 4-OXAZOLECARBOXYLIC ACID, 97%. Offered by: Combi-blocks, GLPBio, TCI, Thermo Scientific (Acros), Ambeed. Available pack sizes: 25g, 5g, 100g, 1g, 10g, 500g, 250mg, 50g.