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. Author manuscript; available in PMC: 2010 Sep 2.
Published in final edited form as: Org Biomol Chem. 2007 Aug 29;5(20):3363–3367. doi: 10.1039/b707602a

Fig. 3.

Fig. 3

Percent composition by 13C NMR of various GSH–13C formaldehyde adducts vs. pH for NMR samples containing an 8-fold excess of formaldehyde. BiGF2 (-○-, 13C NMR = 61.5 and 62.2 ppm), HMGSH (-●-, 13C NMR = 66.7 ppm) and an unidentified constituent (-▾-, 13C NMR = 44.1 ppm).