The molecule is a steroid sulfate that is 17alpha-ethynylestradiol in which the phenolic hydrogen at position 3 has been replaced by a sulfo group. It has a role as an estrogen and an antineoplastic agent. It is a steroid sulfate and a 17beta-hydroxy steroid. It derives from a 17alpha-ethynylestradiol. It is a conjugate acid of a 17alpha-ethynylestradiol 3-sulfate(1-).
[(8R,9S,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-yl] hydrogen sulfate