Velocity integrated intensity maps (contours and colour) of CS(7–6), HCN(4–3), HNC(4–3), H₂CO(5_1,5–4_1,4) and CH₃OH(1_1,1–0_0,0) detected in the coma of comet ISON in blue and model counterparts (Sect. 4) in green. Colours indicate intensity and contours are in steps of 10σ for CS(7–6) and HCN(4–3), 3σ for H₂CO(5_1,5–4_1,4) and 1σ for HNC(4–3) and CH₃OH(1_1,1–0_0,0) starting at 3σ and 2σ respectively where σ is the RMS noise in each map. Crosses mark the peak continuum emission.