ETE63: Ethinylestradiol 13-Ethyl Impurity

(17α)-13-Ethyl-18,19-dinorpregna-1,3,5(10)-trien-20-yne-3,17-diol ; 13-Ethyl-17α-ethynylgona-1,3,5(10)-triene-3,17β-diol ;

CAS # 14012-72-7 ;

C21H26O2 ;
Mol. Wt.: 310.43 ;