6-Amino-5-nitropyridin-2-one on:
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6-Amino-5-nitropyridin-2-one or 6-amino-5-nitro-2(1H)-pyridinone is a 
pyridine
Pyridine is a basic heterocyclic organic compound with the chemical formula . It is structurally related to benzene, with one methine group replaced by a nitrogen atom. It is a highly flammable, weakly alkaline, water-miscible liquid with a d ...
base. It is used as a nucleobase
Nucleobases, also known as ''nitrogenous bases'' or often simply ''bases'', are nitrogen-containing biological compounds that form nucleosides, which, in turn, are components of nucleotides, with all of these monomers constituting the basic b ...
of hachimoji DNA
Hachimoji DNA (from Japanese ''hachimoji'', "eight letters") is a synthetic nucleic acid analog that uses four synthetic nucleotides in addition to the four present in the natural nucleic acids, DNA and RNA. This leads to four allowed base pa ...
, in which it pairs with 5-aza-7-deazaguanine
5-Aza-7-deazaguanine or 2-aminoimidazo ,2-a1,3,5]triazin-4(1H)-one is a 5-Aza-7-deazapurine base that is an isomer of guanine. It is used as a nucleobase of hachimoji DNA, in which it pairs with 6-Amino-5-nitropyridin-2-one
6-Amino-5-nitropyri ...
.
References