Integrated intensity maps (moment 0) for 14 molecular emission lines at a common resolution of 4″ ≈ 150 pc. The maps were created using a hexagonal sampling with half a beam spacing, where CO(1−0) was used as a mask. The grey shaded circle in the lower left corner marks the beam size and the red contours show CO(1−0) S/N levels of 30, 60 and 90. The white contours in the first panel show S/N levels of 200 and 300, and in the second panel S/N levels of 30, 60 and 90. The following panels (from HCN to H₂CO(2 − 1)) show S/N levels of 3, 6, 9, 30, 60 and 90. The colourbar indicates the integrated intensity of each line in units of K km s⁻¹. See Table 1 for the properties of this data set.