You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name methyl 9-[[(3aS,3bS,9aR,9bR,11aS)-6,9a,11a-trimethyl-7-oxo-2,3,3a,3b,4,5,5a,8,9,9b,10,11-dodecahydro-1H-indeno[5,4-f]quinolin-1-yl]methylamino]-9-oxononanoate into its molecular formula.
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C30H50N2O4
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