Table 2. Experimental data and proposed structures of the metabolites detected after exposure of C. elegans to genistein for 48 h.

Peak	Peak area (%)	[M-H]−	Fragment ions	Proposed structure
1	0.1	593	431, 269, 268	Gen-7,4′-di-O-glucoside
2	0*	511	269, 241, 97, 79	Gen-O-phosphohexoside
3	0.1	593	431, 269, 239, 227	Gen-di-O-hexoside
4	2.3	673	403, 269, 97, 79	Gen-O-phosphodisaccharide
5	61.1	511	269, 241, 97, 79	Gen-7-O-phosphoglucoside
6	3.6	511	413, 269, 241, 97, 79	Gen-4′-O-phosphohexoside
7	1.0	593	269, 225	Gen-O-disaccharide
8	0.1	431	311, 269/268, 225,157/159	Gen-O-hexoside
9	0.1	431	311, 269, 225,157/159	Gen-O-hexoside
10	19.6	431	269/268, 239, 211, 195, 167	Gen-7-O-ß-D-glucoside
11	3.4	431	269/268, 239, 211, 195, 167	Gen-4′-O-ß-D-glucoside
	7.3	269	225, 159, 133, 107	Gen aglycone

Peak number and peak area (in %) refer to the LC/UV chromatogram shown in Figure 1.

^*Metabolite was only detected in MS analysis. Gen, genistein.