You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1S,3aS,5aR,5bR,7aR,11aR,11bR,13aR,13bR)-9-hydroxy-8-(hydroxymethyl)-5a,5b,8,11a-tetramethyl-1-propan-2-yl-1,2,3,4,5,6,7,7a,9,10,11,11b,12,13,13a,13b-hexadecahydrocyclopenta[a]chrysene-3a-carboxylic acid into its molecular formula.
user
C30H50O4
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