Hydroorotic acid, L

The presence of a carboxylic acid group and multiple carbonyl functionalities gives it strong hydrogen-bonding capacity and high polarity. The L-configuration is significant, as stereochemistry can influence enzymatic interactions and downstream biological behavior. L-Hydroorotic acid is the reduced (hydrogenated) form of orotic acid, retaining the pyrimidine-2,6-dione core while introducing chirality into the molecule.