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cas no:    |chemical formula: c43h74n2o14|2-((4r,5s,6s,7r,9r,10r,11e,13e,16r)-6-(((2s,3r,4r,5s,6r)-5-(((2s,4r,5s,6s)-4,5-dihydroxy-4,6-dimethyltetrahydro-2h-pyran-2-yl)oxy)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2h-pyran-2-yl)oxy)-10-(((2r,5s,6r)-5-(dimethylamino)-6-methyltetrahydro-2h-pyran-2-yl)oxy)-4-hydroxy-5-methoxy-9,16-dimethyl-2-oxooxacyclohexadeca-11,13-dien-7-yl)acetaldehyde