Let's Consider Another "Miracle Drug" with the Scientific Name Orlistat

Let's consider another "miracle drug" with the scientific name orlistat, which is marketed by Roche Pharmaceuticals as Xenical. The formal chemical name for Xenical is (s) -2-formylamino-4-methyl-pentanoic acid (s) -1-[[(2S, 3S) -3-hexyl-4-oxo-2-oxetanyl] methyl]-dodecyl ester. Its structure is shown below. The molecular formula for this wonder diet drug that is supposed to block the uptake of fat is C₂₉H₃₅NO₅. Calculate the molecular weight of this compound.

A) between 100 and 200 g/mol
B) between 200 and 300 g/mol
C) between 300 and 400 g/mol
D) between 400 and 500 g/mol
E) more than 500 g/mol