Various observed properties of the COMs as a function of binding (or desorption) energy E_des. The binding energies are taken from the third column of Table 4, with uncertainties indicating the range of values listed in that table. Panel a: E_des versus the maximum distance to which the respective COM is still detected, where distances are taken from Fig. 7. They represent the mean value from both directions for each COM, respectively. The error bars show the spread in the values. Panel b: E_des versus the rotation temperature at which the COM abundance relative to H₂ peaks. The values are taken from Fig. 12. They represent the median value from both directions and both methods of H₂ column density derivation for each COM, respectively. The error bars show the spread in the values. Panel c: E_des versus distance at which the abundance of a COM peaks, where distances are taken from Figs. 10 and 11. In all panels the solid grey line indicates a binding energy of water of 5700 K while the dashed lines show the possible range of values based on other studies (see Table 4). Unfilled symbols indicate species that are mainly formed in the gas phase according to the model by Garrod et al. (2022).