CHO-L-Asp-L-Phe-OMe For-L-Asp-L-Phe-OMe N-Formyl-L-αAsp-L-Phe-OMe N-Formyl-alpha-aspartylphenylalanine methyl ester N-Formyl-alpha-L-aspartyl-L-phenylalanine methyl ester N-Formylaspartam N-Formyl-L-aspartyl-L-phenylalanine methyl ester FORMYL ASPARTAME