6 Methyl Drospirenone

Chemical Name: (4aR,4bS,6aS,7S,7aS,8aS,8bR,8cR)-4a,6a,10-trimethyl-3',4,4a,4b,4',6,6a,7a,8,8a,8b,8c,9,10-tetradecahydro-3H,5'H-spiro[cyclopropa[4,5]cyclopenta[1,2-a]phenanthrene-7,2'-furan]-2,5'(5H)-dione