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What is the molecular formula of the molecule identified by (2S,4S,5S)-4,5-dihydroxy-2-[(3S,4S,5R,8R,9R,10R,14R,17S)-3-hydroxy-4-(hydroxymethyl)-4,8,10,14-tetramethyl-2,3,5,6,7,9,11,12,13,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]-6,6-dimethyloxane-2-carboxylic acid ?
user
C30H50O7
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