The molecular weight and logarithm of Poctanol-water (log Pow) of acetylcholine, cholesterol, 14 organophosphate oxons, 18 organophosphate thions, 8 N-methyl carbamates, and 11 other carbamates were visualized in a scatter plot. Acetylcholine is the third smallest and most hydrophilic compound and cholesterol is the second largest and most hydrophobic.