Log D, or the distribution coefficient, represents the ratio of the overall compound concentrations in two phases, with one always being aqueous. This includes both ionized and un-ionized forms, and is affected by the pH level of the aqueous phase. Non-ionizable compounds have a log D value equivalent to log P, regardless of pH level. To accurately measure log D, the pH of the aqueous phase is buffered to a specific level to avoid any significant pH changes caused by compound introduction. The logarithmic value of each log D is based on a ratio between the overall concentrations of the compound's different forms in one solvent, versus its concentrations in the other solvent.Could you tell me the molecule's distribution coefficient?