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Reference species representing cellulose, hemicellulose, and lignins. (CELL: C6H10O5 (44.44%C-6.17%H-49.38%O), HCELL: C5H8O4 (45.45%C-6.06%H-48.48%O), LIG-C: C15H14O4 (69.77%C-5.43%H-24.80%O), LIG-O: C20H22O10 (56.87%C-5.21%H-37.92%O), and LIG-H: C22H28O9 (60.55%C-6.42%H-33.03%O)).
