Transitions of CH₃OH, ν= 0 covered by our ALMA survey. The best-fit LTE synthetic spectrum of CH₃OH is displayed in red and overlaid on the observed spectrum of Sgr B2(N2) shown in black. The green synthetic spectrum contains the contributions of all molecules identified in our survey so far including the species shown in red. The central frequency of each panel is indicated below the x-axis in MHz; its width is given also in MHz in parentheses. The angular resolution is also indicated. The y-axis is labeled in brightness temperature units (K). The dotted line marks the 3σ noise level.