Comparison between modelled peak abundances with respect to H₂ and the observed abundances towards both components at N1SE1 and N1NW3:HC, N1S, N1S1, G0.693, and L1157-B1. For all observed values in SgrB2(N1), H₂ column densities were derived from C¹⁸O emission, except for N1S, for which dust emission was used. The modelled abundances X_mod are taken from Table 17 in Garrod et al. (2022), where we use the values of the slow (a) and fast (b) warm-up models, and multiplied by a factor 2 to roughly convert to abundances with respect to H₂ (from total H). Empty bars indicate lower limits. Hatched bars indicate the same as in Fig. 10. Black crosses indicate molecules for which no values are available.