2,3,5,6-tetradeuterio-4-nitro-1-oxidopyridin-1-ium

4-Nitropyridine-d4 N-Oxide is the isotope labelled analog of 4-Nitropyridine N-Oxide (N519920); the N-oxide derivative of a nitrated pyridine that has been shown to inhibit Na,K-ATPase activity. 4-Nitropyridine N-Oxide is also a quorum sensing inhibitor.