2D abundance maps of CO, HCN, CN, C₂H, NO, and HCO⁺ in the fiducial model. Note that the CO abundance is shown on a different colorscale. The white contour indicates the snowline of CO, HCN, and NO in their respective channels. The blue contour shows the critical density assuming a temperature of 50 K. Only the regions with a gas number density above 10⁵ cm⁻³ are shown. As the CO and NO critical densities are lower than this, those contours are not shown in the respective panels.