CAS 438616-45-6 appears in our catalog under these names: 4-[4-(3-Chlorophenyl)piperazin-1-yl]-4-oxobutanoic acid, 95%, 4-(4-(3-Chlorophenyl)piperazin-1-yl)-4-oxobutanoic acid. Offered by: Combi-blocks, Biosynth. Available pack sizes: 500mg, 2000mg, 1000mg, 5000mg, 10000mg.