N-acyl-D-amino acid N-acetyl-D-amino acid N-Acetyl-D-amino-acid CHEBI:21501 N-acetyl-D-amino acids CHEBI:7109 An N-acetyl-amino acid having D-configuration. KEGG:C03135 N-acetyl-L-amino acid N-acetyl-amino acid N-acetyl-D-amino acid anion