From top to bottom: abundances of ten COMs with respect to CH₃OH calculated atT = 150 K by the models N2-N5, with different T_min. In each panel the different symbols indicate the abundances calculated with different CRIR values. The horizontal black lines show the observed abundances relative to CH₃OH. The gray boxes represent the 1σ uncertainties. Arrows indicate upper limits. The abundances relative to CH₃OH lower than 10⁻⁹ are not visible in the plots.