Visualization of the column densities derived with the LTE CLASS-Module weeds. (a) Mosaic plot showing the column densities of species at the individual emission peaks in units of cm⁻². Tile areas represent the logarithmic scaled absolute column densities in order to also emphasize the distribution of less abundant species. CO, HCO⁺, and HCN are not displayed, as their self-absorbed line profiles prevent a direct estimation of corresponding column densities. We note that these species show emission at all peak positions. (b) Bar plot of the column densities in units of the CO column density at the respective positions, as indicated by the colors in the upper right panel. Gray bars with arrows pointing left visualize derived upper limits for the column densities, abundances of HCO⁺ and HCN are marked with a *, as these are calculated from the less abundant isotopologues H¹³CO⁺ and H¹³CN.