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. 2023 Aug 8;621(7979):511–515. doi: 10.1038/s41586-023-06507-5

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© The Author(s) 2023

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Extended Data Fig. 2 — All monomer samples were silylated by N, O-bis(trimethylsilyl)trifluoroacetamide (BSTFA) prior to gas chromatography-mass spectrometry (GC-MS) analysis. See ‘Lignin characterizations’ in the Method section for details.