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. 2017 Apr 27;7:46481. doi: 10.1038/srep46481

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^¹³C NMR spectra of (a) isoeugenol polymerised with HRP and (b) isoeugenol polymerised with HRP in the presence of archaeological wood, IE1. The distribution of peaks is almost identical for both. The peak at 92.70 ppm refers to the α-C in the β-5′ moiety.