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What is the molecular formula of the molecule identified by [(3S,5R,10S,13R,14R,17R)-4,4,10,13,14-pentamethyl-17-[(2R)-6-methylhept-5-en-2-yl]-2,3,5,6,7,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-yl] 4-[(1-oxidopyridin-1-ium-3-yl)methylamino]-4-oxobutanoate ?
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C40H60N2O4
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