Docetaxel Impurity 20

Chemical Name: (2aR,4S,4aS,6R,11S,12S,12aR,12bS)-12b-acetoxy-4,6,11-trihydroxy-4a,8,13,13-tetramethyl-5-oxo-2a,3,4,4a,5,6,11,12,12a,12b-decahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxet-12-yl benzoate

Synonym: 13,14-Anhydro-10-desacetyl Baccatin ;