6-Amino-5-nitropyridin-2-one is a pyridine base and used as a nucleobase of hachimoji DNA, in which it pairs with 5-aza-7-deazaguanine[1].
[1]. Hoshika S, et al. Hachimoji DNA and RNA: A genetic system with eight building blocks. Science. 2019 Feb 22;363(6429):884-887.
















