Synonyms: 2,3-dihydroxypropyl(8r,9s,10r,14s)-13-ethyl-17-ethynyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthren-17-yl carbonate(non-preferred name);Levonorgestrel glycidol;AC1L4OU6;AC1Q6OF1;117635-12-8;AR-1D2620;18,19-Dinorpregn-4-en-20-yn-3-one, 17-(((2,3-dihydroxypropoxy)carbonyl)oxy)-13-ethyl-, (17alpha)-;2,3-dihydroxypropyl [(8R,9S,10R,14S)-13-ethyl-17-ethynyl-3-oxo-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-yl] carbonate