CAS 1703-23-7 appears in our catalog under these names: 1,4-Bis(chloroacetyl)piperazine, 95%, 1,1'-(Piperazine-1,4-diyl)bis(2-chloroethanone) 98%, 1,1'-(Piperazine-1,4-diyl)bis(2-chloroethanone), 98%, 98%, 1,4-bis(chloroacetyl)piperazine, 98%. Offered by: Combi-blocks, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 5g.