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. 2019 Mar 27;19(4):506–516. doi: 10.1089/ast.2017.1800

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© J. Kawai et al., 2018; Published by Mary Ann Liebert, Inc.

This Open Access article is distributed under the terms of the Creative Commons License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.

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FIG. 5. — ¹³C NMR spectra of a 1:1 mixture of 1-¹³C-labeled D,L-glyceraldehyde and sodium bisulfite, obtained in D₂O at a pH of 4.76 at 25°C. The two resonances (84.3 and 82.4) are assigned to be the two diastereomeric adducts in a ratio of ∼47:53. Glyceraldehyde itself had a single resonance at 89.95 ppm (data not shown), which is assigned to the hydrated species. Again, undetectable of a resonance at 89.95 ppm suggests that adduct had consumed more than 99% of the substrate.