CAS 2173116-06-6 appears in our catalog under these names: 5-Oxo-1-[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]pyrrolidine-3-carboxylic acid, 95%, 5-Oxo-1-(5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)pyrrolidine-3-carboxylic acid, 95%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 1g, 5g.