16-Bromomethoxyestradiol 16alpha-Bromo-11beta-methoxy-17beta-estradiol 16alpha-Bromo-11beta-methoxyestradiol-17beta 82123-98-6 Estra-1,3,5(10)-triene-3,17-diol, 16-(bromo-77Br)-11-methoxy-, (11beta,16alpha,17beta)-