Hydrogen peroxide, methanol, 1,2-dichloroethane and five linear alkanes ranging in size from butane to octane were simulated using MD, and the resulting 5 × 106 frames were used to estimate the marginal entropies. These entropies were then combined according to MIST (blue bars) or MIE (red bars) to generate the first-, second-, or third-order approximation to the configurational entropy of each molecule. Results are compared to calculations using the Mining Minima method (dashed black line).