You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[(3S,6R,9R)-6-benzyl-2-methyl-4-oxo-10-phenyl-9-(thiophen-2-ylmethylcarbamoylamino)decan-3-yl]-1-methyl-1-[(2-propan-2-yl-1,3-thiazol-4-yl)methyl]urea by IUPAC nomenclature, provide its molecular formula.
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C39H51N5O3S2
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