Electrospray mass spectra (QTrap system) of the deprotonated main genistein metabolite M5, identified as a genistein-monophosphoglucoside. T. SoukupSebastian SpanierBritta GrünzGregor BunzelDiana DanielHannelore KullingSabine E. 2013 <p>(A) MS spectrum. (B) MS/MS spectrum of <i>m/z</i> 511. (C) MS/MS/MS spectrum of <i>m/z</i> 511→<i>m/z</i> 241.</p>