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cas no:53-03-2|chemical formula: c21h26o5|(8s,9s,10r,13s,14s,17r)-17-hydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-7,8,9,10,12,13,14,15,16,17-decahydro-3h-cyclope……

cas no: |chemical formula: c21h28o5|(10r,13s,17r)-17-hydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-1,6,7,8,9,10,12,13,14,15,16,17-dodecahydro-3h-cyclopenta[a……

cas no: |chemical formula: c19h24o3|(10r,13s)-10,13-dimethyl-6,7,8,9,10,12,13,14,15,16-decahydro-1h-cyclopenta[a]phenanthrene-3,11,17(2h)-trione