Quinic acid-13C3 is the 13C-labeled D-(-)-Quinic acid. D-(-)-Quinic acid scavenges hydrogen peroxide (IC50=87.11 µg/mL) and exhibits antioxidant activity. D-(-)-Quinic acid is the inhibitor for MAO and alpha-Glucosidase (IC50 =93.75 µg/mL). D-(-)-Quinic acid is orally active[1][2].