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Can you give the molecular formula of the molecule dimethylphosphane;(2E,11E,13R,14S)-11-fluoro-10-hydroxy-20-methoxy-18-(methoxymethoxy)-7,7,13,14-tetramethyl-6,8,15-trioxatricyclo[15.4.0.05,9]henicosa-1(17),2,11,18,20-pentaen-16-one;(2E,11E,13R,14S)-11-fluoro-20-methoxy-18-(methoxymethoxy)-7,7,13,14-tetramethyl-6,8,15-trioxatricyclo[15.4.0.05,9]henicosa-1(17),2,11,18,20-pentaene-10,16-dione ?
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C52H71F2O16P
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