Figure 4.
A) Representative MS spectra of MIDD0301 at different pH; B) Ratios of peak heights at 414 m/z (closed MIDD0301) and 432 m/z (open MIDD0301). At pH 4.3, both compounds were present at the same peak height ratio.
A) Representative MS spectra of MIDD0301 at different pH; B) Ratios of peak heights at 414 m/z (closed MIDD0301) and 432 m/z (open MIDD0301). At pH 4.3, both compounds were present at the same peak height ratio.