CAS 497-04-1 appears in our catalog under these names: Epichlorohydrin Impurity 4, 2-Chloro-1,3-propanediol, >95% (GC), 2-Chloropropane-1,3-diol, 97%, 2-Chloro-1,3-propanediol, 2-Chloro-1,3-propanediol 100 µg/mL in Acetonitrile. Offered by: Chemat Brand, TRC, AmBeed, Dr. Ehrenstorfer, Sigma-Aldrich. Available pack sizes: on request, 100mg, 25mg, 50mg, 1ml, 250mg, 1g, 500mg.