CAS 454-31-9 appears in our catalog under these names: Ethyl Difluoroacetate, >95% (GC), Ethyl difluoroacetate, 98% , Ethyl Difluoroacetate, >98.0%(GC), Ethyl 2,2-difluoroacetate 98%, ETHYL DIFLUOROACETATE, 97%. Offered by: TRC, Thermo Scientific (Alfa Aesar), TCI, Ambeed, Sigma-Aldrich. Available pack sizes: 10g, 5g, 25g, 100g, 500g, 1kg.