CAS 856847-77-3 appears in our catalog under these names: 3-Chloropyridazine hydrochloride, 98%, 3-Chloropyridazine hydrochloride, 95%, 3-Chloropyridazine hydrochloride, 96%, 3-Chloropyridazine Hydrochloride, >95% (HPLC), 6-Chloro-pyridazine hydrochloride. Offered by: Combi-blocks, Ambeed, Chemat, BLDpharm, Fluorochem. Available pack sizes: 1g, 10g, 25g, 5g, 250mg, 100g, 100mg, 500mg.