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system
For the molecule named acetyl acetate;(3R,4S,5S,6R,7R,8R,11R,12R,13S,14R)-6-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-14-ethyl-12,13-dihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-7-methoxy-3,5,7,8,11,13-hexamethyl-oxacyclotetradecane-2,10-dione;(3R,4S,5S,6R,7R,8R,11R,12R,13S,14R)-14-ethyl-12,13-dihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-6-[(2S,3R,4S,6R)-3-hydroxy-6-methyl-4-(methylamino)oxan-2-yl]oxy-7-methoxy-3,5,7,8,11,13-hexamethyl-oxacyclotetradecane-2,10-dione;(3R,5R,6R,7R,8R,11R,12R,13S,14R)-14-ethyl-6-[(2S,3R,4S,6R)-4-[(4-ethynylphenyl)methyl-methylamino]-3,6-dimethyloxan-2-yl]oxy-12,13-dihydroxy-7-methoxy-3,5,7,8,11,13-hexamethyl-oxacyclotetradecane-2,4,10-trione;(3R,4S,5S,6R,7R,8R,11R,12R,13S,14R)-14-ethyl-6-[(2S,3R,4S,6R)-4-[(4-ethynylphenyl)methyl-methylamino]-3,6-dimethyloxan-2-yl]oxy-4,12,13-trihydroxy-7-methoxy-3,5,7,8,11,13-hexamethyl-oxacyclotetradecane-2,10-dione;(3R,4S,5S,6R,7R,8R,11R,12R,13S,14R)-14-ethyl-6-[(2S,3R,4S,6R)-4-[(4-ethynylphenyl)methyl-methylamino]-3-hydroxy-6-methyloxan-2-yl]oxy-12,13-dihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-7-methoxy-3,5,7,8,11,13-hexamethyl-oxacyclotetradecane-2,10-dione;(3R,4S,5S,6R,7R,8R,11R,12R,13S,14R)-14-ethyl-6-[(2S,3R,4S,6R)-4-[(4-ethynylphenyl)methyl-methylamino]-3-hydroxy-6-methyloxan-2-yl]oxy-4,12,13-trihydroxy-7-methoxy-3,5,7,8,11,13-hexamethyl-oxacyclotetradecane-2,10-dione;(4-ethynylphenyl)methyl methanesulfonate by IUPAC nomenclature, provide its molecular formula.
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C251H404N6O73S
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