ol-water partition coefficient (ClogP). The descriptors tend to convolute any different properties into these simple scalar descriptors, but can be highly effective in certain circumstances and are widely appreciated for their interpretability in interactive systems. One such set of property descriptors that has gained wide acceptance is the Lipinski rule-of-five, which has been suggested as an heuristic for indicating the oral absorption of a potential drug based on marketed orally-dosed drugs. The rule-of-five applies four calculated properties and defined cut-offs