Fulvestrant Impurity 12

Chemical Name: (7R,8R,9S,13S,14S,17R)-7-(9-bromononyl)-3-hydroxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl acetate

Synonym: (8S,10S)-10-[(3-amino-2,3,6-trideoxy-α-l-lyxo-hexopyranosyl)oxy]-6,8,11-trihydroxy-1-methoxy-8-propanoyl-7,8,9,10-tetrahydrotetracene-5,12-dione ; 8-ethyldaunorubicin