Emission maps for most of the identified molecular emission lines in the spectrum of IRAS2A. While CO isotopologues and H₂CO (upper set of panels) are tracing the large-scale envelope and outflow structures, complex molecules (rows 2 to 7) are tracing a compact but often spatially-resolved emission centered on the maximum of the continuum emission. Some molecular lines are blended, see Table 1 for further information. Contours show the 3σ, 5σ, and 8σ, and then 10σ to 100σ in 20σ steps.