Synonyms: 17-(iodoethynyl)estra-1,3,5(10)-triene-3,17-diol;17alpha-Iodoethynylestradiol;I-EE2;AC1L26TE;AC1Q4P47;AR-1C1013;(17alpha)-21-Iodo-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol;(8R,9S,13S,14S)-17-(2-iodoethynyl)-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol