Research Article

Pseudo-MS3 Approach Using Electrospray Mass Spectrometry (ESI-MS/MS) to Characterize Certain (2E)-2-[3-(1H-Imidazol-1-yl)-1-phenylpropylidene]hydrazinecarboxamide Derivatives

Figure 2

(a) ESI mass spectrum of compound 3d [M + H]+ ion (m/z 442.10). (b) MS2 spectrum of m/z 442.10. (c) In-source fragmentation of compound 3d. (d) MS2 spectrum of m/z 374.10. (e) MS2 spectrum of m/z 271.10. (f) MS2 spectrum of m/z 214.20.
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386301.fig.002b
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386301.fig.002d
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(f)