Myosmine can be isolated from tobacco, along with several other structurally similar compounds, including nicotine. The originally accepted structure for myosmine was disproven with IR spectroscopy (Anal. Chem. 1954, 26. 1428-1431): Originally accepted H structure of myosmine % Transmittance TT 1000 1500 3500 4000 3000 2500 2000 Wavenumber(cm) 1125 AM 4.79a X Incorrect. The N-H bond stretching gives a characteristici signal. How is the IR spectrum inconsistent with the originally proposed structure? Mark all that apply. sp C-H signal is missing N-H signal is missing 0-H signal is present aldehyde C-H is present sp?C-H signal is missing e Textbook and Media