Part of the Band 6 spectrum of B1-c shown in black with the best-fitting model overplotted in red. The window is centered around a few CH₃CHO, CH₃ OCHO, and CH₃CH₂OH lines. The focus here is on the O-bearing COMs; for this reason several transitions clearly visible in the data (i.e., CH₃ CH₂CN) do not showup in the fitting model. Lines in italics were excluded during the fitting.