Comparison of ice and gas phase abundances (relative to C₂H₅OH) toward IRAS 18089 mm. The crosses and squares mark ice and gas phase abundances, respectively. Blue, green, yellow, and red colors highlight COH-, N-, S-, and Si-bearing species. The column density of less abundant isotopologs (including ¹³C, ¹⁸O, ³³S, and ³⁴ S isotopes) were converted to their main isotopolog using relations by Wilson & Rood (1994) and Yan et al. (2023) with a Galactocentric distance of d_gal=5.7kpc for IRAS 18089.