Fulvestrant Impurity 5

Chemical Name: (7R,7'R,8R,8'R,9S,9'S,13S,13'S,14S,14'S,17S,17'S)-7,7'-(sulfinylbis(nonane-9,1-diyl))bis(13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol)

Synonym: Doxorubicin USP RC B ; (8S,10S)-6,8,10,11-tetrahydroxy-8-(hydroxyacetyl)-1-methoxy-7,8,9,10-tetrahydrotetracene-5,12-dione ; doxorubicin aglycone ; doxorubicinone