CAS 253586-59-3 appears in our catalog under these names: 3-(Chloromethyl)-5-(1,2,3-thiadiazol-4-yl)-1,2,4-oxadiazole, 95%, 3-Chloromethyl-5-[1,2,3]thiadiazol-4-yl-[1,2,4]oxadiazole. Offered by: Combi-blocks, Fluorochem. Available pack sizes: 250mg, 1g, 5g.