IK1 inhibitor PA-6 (PA-6) is a selective and potent inhibitor of IK1 (KIR2.x ion-channel-carried inward rectifier current)(IC50 of 12-15 nM for human and mouse KIR2.x currents).

5-A-RU (5-Amino-6-(D-ribitylamino)uracil), a precursor of bacterial Riboflavin, is a mucosal-associated invariant T (MAIT) cells activator. 5-A-RU forms potent MAIT-activating antigens via non-enzymatic reactions with small molecules that are derived from other metabolic pathways.This compound is unstable in powder form and other related salt forms are recommended.

PA 21 is an iron-based noncalcium phosphate binder that prevents vascular calcification in chronic renal failure rats.

Influenza virus-IN-6 (Compound 35) serves as a potent inhibitor targeting the N-terminal domain of the polymerase acidic protein (PA N ) endonuclease subunit of the influenza virus, exhibiting an inhibitory concentration 50 (IC 50 ) value of 0.20 μM [1].