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system
Provide the molecular formula for the IUPAC named substance (3R,5S,8R,10S,13R,17R)-17-[(2R,5R)-5-ethyl-6-methylheptan-2-yl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,7-diol;[(3R,5S,8R,10S,13R,17R)-17-[(2R,5R)-5-ethyl-6-methylheptan-2-yl]-3,10,13-trimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-7-yl]oxyphosphane .
user
C59H107O3P
assistant