HCFC-251 is a chemical compound registered under CAS number 421-41-0, with the molecular formula C3H4 Cl3 F and a molecular weight of about 165.42 g/mol. It is also known as 1,1,2-Trichloro-1-fluoropropane; Propane, 1,1,2-trichloro-1-fluoro-. ProvideChemicals supplies HCFC-251 for laboratory research and bulk production; product code 1190419. Send an inquiry for purity, packaging, price and lead time.