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system
Provide the molecular formula for the IUPAC named substance (2S)-2-[[(2R)-2-[[2-[(E)-[(8R,9S,10R,13S,14S,17S)-17-ethynyl-17-hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-ylidene]amino]oxyacetyl]amino]-3-methylbutanoyl]amino]-3-(1H-indol-3-yl)propanoic acid .
user
C39H50N4O6
assistant