Unblended or slightly blended transitions of cis-N-methylformamide detected towards G+0.693 arranged in order of increasing frequency. The grey histogram and shaded area correspond to the observed spectra. The blue lines depict the synthetic spectra, accounting for contributions from all detected molecular species (over 140) in G+0.693. The red line indicates the best LTE fit provided by MADCUBA. The quantum numbers and E_u values for each detected transition are listed in the upper left corner of each panel.