You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2,8,10,11-tetrahydroxy-2,9-bis(hydroxymethyl)-1,6a,6b,9,12a-pentamethyl-1,3,4,5,6,6a,7,8,8a,10,11,12,13,14b-tetradecahydropicene-4a-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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C30H48O8
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