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 3

(a) ESI mass spectrum of compound 3c [M + H]⁺ ion (m/z 348.20). (b) MS² spectrum of m/z 348.20. (c) In-source fragmentation of compound 3c. (d) MS² spectrum of m/z 280.22. (e) MS² spectrum of m/z 241.10. (f) MS² spectrum of m/z 183.10. (g) MS² spectrum of m/z 173.10.

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