Fitted model for each molecule on top of the Band 3 data in gray. For readability, the y-axis limit was set to 5 K; however, no line was overestimated except those of methanol and one line of aGg′-(CH₂OH)₂, which are potentially optically thick. The lines that have an intensity higher than 2 K (i.e., detected at a ≳7 − 10σ level) but that were not identified are indicated by an “X”.