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system
For the molecule named 1-O-[(1R,2R,3S,4R,7S,9R,10S,12R,15R)-4-acetyloxy-2-benzoyloxy-1-hydroxy-9,12-bis(hydroxymethyl)-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-15-yl] 5-O-tert-butyl (2S,3R)-2-[2-[3-[[3-[[(1S,3R,6S,8R,11S,13S,16S,18S,21S,23S,26S,28R,31S,33R,36R,38R,40R,42R,44R,46R,48R)-25-[[2-[[6-[(2S,3R)-1-[[(1R,2R,3S,4R,7S,9R,10R,12S,15R)-4-acetyloxy-2-benzoyloxy-1-hydroxy-9,12-dimethoxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-15-yl]oxy]-3-[(2-methylpropan-2-yl)oxycarbonylamino]-1-oxo-3-phenylpropan-2-yl]oxy-6-oxohexyl]carbamoyl]-4-oxo-6-[2-(3-oxobutoxy)ethoxy]hexyl]sulfanylmethyl]-36,37,38,39,40,41,42,43,44,45,46,47,48,49-tetradecahydroxy-5,15,20,30,35-pentakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29,32,34-tetradecaoxaoctacyclo[31.2.2.23,6.28,11.213,16.218,21.223,26.228,31]nonatetracontan-10-yl]methylsulfanyl]-2-(methylamino)propanoyl]amino]propanoyloxy]acetyl]oxy-3-phenylpentanedioate;[(1S,2S,3R,4S,7R,9S,10S,12S,15S)-4-acetyloxy-15-[(2R,3S)-2-(2-butanoyloxyacetyl)oxy-3-[(2-methylpropan-2-yl)oxycarbonylamino]-3-phenylpropanoyl]oxy-1-hydroxy-12-(hydroxymethyl)-9-methoxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate;2-[[(1S,3S,6S,8R,11S,13R,16S,18R,21S,23R,26S,28S,31S,33S,36R,38R,40R,42R,44R,46R,48R)-25-[[2-carboxy-2-(methylamino)ethyl]sulfanylmethyl]-36,37,38,39,40,41,42,43,44,45,46,47,48,49-tetradecahydroxy-10,15,20,30,35-pentakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29,32,34-tetradecaoxaoctacyclo[31.2.2.23,6.28,11.213,16.218,21.223,26.228,31]nonatetracontan-5-yl]methylsulfanylmethyl]-4-oxo-6-[2-(3-oxobutoxy)ethoxy]hexanoic acid by IUPAC nomenclature, provide its molecular formula.
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C271H388N6O129S4
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