Both NMR and MS spectra can be viewed through this ‘View Spectrum’ page via a locally developed JavaScript spectral viewer called JSpectraViewer or JSV (17). For predicted MS data, JSV allows users to mouse over each peak to interactively view the predicted mass and fragment ion structure. The MS data for both experimental and predicted spectra are available and downloadable as lists of m/z values and intensities in *.txt and mzML format. For NMR data, JSV is somewhat more sophisticated and now supports the display of both 1D and 2D NMR spectra. JSV displays NMR peak/chemical shift assignments both on the NMR spectrum and on the molecule itself, which is shown as a thumbnail image with numbered atoms and an assignment table. In the spectral view window JSV displays blue traces, which correspond to the predicted/simulated NMR spectra while the black traces correspond to the experimental NMR spectra. JSV for NMR also supports interactive spectral zooming, moving, gridding, scaling and image saving/downloading. Each NMR spectrum of a pure compound (experimental or predicted) in the DrugBank has downloadable information in the
