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. 2023 Mar 21;14:1292. doi: 10.1038/s41467-023-36904-3

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Fig. 7 — Relative peak area of alkylated analogs of CHNO molecules having a general formula of C_nH_2n-4N₂O₂ which include uracil and their structural isomers in the methanol extracts from the A0106 (top) and C0107 (bottom) samples with relevance to the number of carbon atoms (n = 5–30) in a molecule. The horizontal axis shows the number of carbon atoms and the vertical axis shows the sum of the peak area at each m/z in arbitrary units.