has role is tautomer of has functional parent L-aspartic acid aspartame zwitterion methyl ester micronutrient aspartame CHEBI:2877 A dipeptide obtained by formal condensation of the α-carboxy group of <small>L</small>-aspartic acid with the amino group of methyl <small>L</small>-phenylalaninate. Commonly used as an artificial sweetener. carboxylic acid xenobiotic dipeptide methyl L-phenylalaninate sweetening agent nutraceutical EC 3.1.3.1 (alkaline phosphatase) inhibitor apoptosis inhibitor environmental contaminant