Synonyms: BRN 2022063;(3|A)-17-ethynylestra-4,6-diene-3,17-diyl diacetate;19-Nor-17-alpha-pregna-4,6-dien-20-yne-3,17-beta-diol, diacetate;AC1L554V;KST-1A5521;41020-12-6;AR-1A4841;LS-97342;[(3S,8R,9S,10R,13S,14S)-17-acetyloxy-17-ethynyl-13-methyl-2,3,8,9,10,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate