Comparison of modeled abundances with observations toward Galactic Center molecular clouds and the high-mass star-forming region Sgr B2(N2). The top panel shows abundance distributions for shocked (yellow) and post-shocked (green) gas, while the bottom panel presents those for protostellar objects. Shock models are compared with observations of 40 molecular clouds from Requena-Torres et al. (2006), including data toward G+0.693–0.027 for H₂CO from Jiménez-Serra et al. (2020), CH₃SH and CH₃OH from Rodríguez-Almeida et al. (2021), and CS from Rivilla (priv. commun.). Models are also compared with recent data toward Sgr B2(N2) from Belloche et al. (2025). Following Figure 7 in Belloche et al. (2025), modeled protostellar abundances are shown relative to CH₃OH, and we indicate the 1% and 0.01% levels with respect to methanol with dashed lines.