3-Hydroxy-2-naphthoic Acid-d6 is an intermediate used in the synthesis of Pamoic Acid-d10 (P173502), which is a labelled Pamoic Acid. Agonist of the orphan G protein-coupled receptor GPR35: a potent activator of extracellular signal-regulated kinase and β-arrestin2 with antinociceptive activity. Used as an inhibitor in the real-time fluorescence enzymatic characterization study of specialized human DNA polymerases. Enzyme replacement therapy in pancreatic enzyme deficiency.