Fig. 4.
Part of the 2-D 1H NMR spectrum of the untreated lipid A fraction. A and B, COSY; C, HMQC; D, NOESY; E, 1H-31P HMBC spectra. Spectra were obtained at 327K in DMSO-d6/CDCl3 (1:1 [v/v]).
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