Assertion: catechin's metabolite | /r/CapableOf | show ion m − h]−
Facets:
value: at z 311.0992
type: LOCATION
Source sentences:
text: The metabolites 1, 4, and 5 were saccharides (1, showing the ion [M − H]− at m / z 311.0992, dissociated by supplying the ion at m / z 179.0560, due to a hexose unit, through the neutral loss of 132.0424 Da.