A functional group containing a nitrogen atom and two oxygen atoms, typically denoted by the -NO2 group.
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2(1H)-Pyrimidinone, 4-(2-hydroxyphenyl)-6-methyl-5-nitro-
(Z)-2-(1-methylbenzimidazol-2-yl)-1-nitro-1-phenylethene
((E)-3-Methyl-pent-3-ene-1-sulfonyl)-benzene
