CAS 3946-29-0 appears in our catalog under these names: 3,4'-Dichloropropiophenone, 97% , 3,4'-Dichloropropiophenone, 3,4'-Dichloropropiophenone, >98.0%(GC)(T), 3,4'-Dichloropropiophenone 98%, 3-Chloro-1-(4-chlorophenyl)propan-1-one, 95%. Offered by: Thermo Scientific (Alfa Aesar), Biosynth, TCI, Ambeed, Fluorochem. Available pack sizes: 10g, 50g, 5g, 25g, 1g, 100g.