CAS 21886-56-6 appears in our catalog under these names: 2,3'-Dichloroacetophenone, 95%, 2-Chloro-1-(3-chlorophenyl)ethan-1-one, 98%, 2-Chloro-1-(3-chlorophenyl)ethanone, 95%. Offered by: Combi-blocks, AmBeed, Fluorochem. Available pack sizes: 250mg, 5g, 1g, 25g.