Journal
JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES
Volume 44, Issue 3, Pages 1000-1005Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ci034243x
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This paper describes a simple method for estimating the aqueous solubility (ESOL - Estimated SOLubility) of a compound directly from its structure. The model was derived from a set of 2874 measured solubilities using linear regression against nine molecular properties. The most significant parameter was calculated logP(octanol), followed by molecular weight, proportion of heavy atoms in aromatic systems, and number of rotatable bonds. The model performed consistently well across three validation sets, predicting solubilities within a factor of 5-8 of their measured values, and was competitive with the well-established General Solubility Equation for medicinal/agrochemical sized molecules.
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