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TRIETHYL 2-PHOSPHONOPROPIONATE BIS(2,2,2-TRIFLUOROETHYL) (METHOXYCARBONYLMETHYL)PHOSPHONATE Methyl diethylphosphonoacetate TRIETHYL 2-PHOSPHONOPENTANOATE tert-Butyl diethylphosphonoacetate Triethyl 2-fluoro-2-phosphonoacetate TRIETHYL ALPHA-PROPARGYLPHOSPHONOACETATE TRIETHYL PHOSPHONOACETATE-1-13C ALLYL DIETHYLPHOSPHONOACETATE 2-ETHOXY-TRIETHYLPHOSPHONOACETATE