octanol-water partition ratio

symbol: $K_{\rm{OW}}$
synonyms: partition ratio, water/octanol partition coefficient
https://doi.org/10.1351/goldbook.08192
Equilibrium concentration of a substance in octan-1-ol divided by its equilibrium concentration in water.
Note:
This is a measure of the lipophilicity of a substance. It is used in pharmacological studies and in the assessment of environmental fate and transport of organic chemicals.
Source:
PAC, 2022, 94, 353. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 2021)) on page 474 [Terms] [Paper]