Notes. The lines with an asterisk are blended with other species, see text. ^(a) Observed (centroid) frequencies assuming that the radial velocities relative to LSR are 3.9 km s^-1, it does not coincide with the predicted frequency because it does not take into account blending with transitions of other species. ^(b) Observed integrated intensity in main-beam temperature scale. Because of the high spectral confusion level it was not calculated for the line at 270.267 GHz. ^(c) Uncertainty on the observed integrated intensity in main-beam temperature scale calculated as follow: rms being the number of channels over which the integrated intensities are computed, v the channel width and the uncertainty on the calibration of the observations ( % in the 198-265 GHz spectral range, see Caux et al. 2010). For the line at 270.267 GHz, the rms of the observed spectrum in main-beam temperature scale is given. ^(d) Integrated intensity of the modelled lines.