17R-Drospirenone;Drospirenone Related Compound A (15 mg) (17-Hydroxy-6beta,7beta:15beta,16beta-dimethylene-3-oxo-17beta-pregn-4-ene-21-carboxylic acid, gamma-lactone);[6R-(6α,7α,8β,9α,10β,13β,14α,15α,16α,17α)]-1,3',4',6,7,8,9,10,11,12,13,14,15,16,20,21-Hexadecahydro-10,13-diMethyl-spiro[17H-dicyclopropa[6,7:15,16]cyclopenta[a]phenanthrene-17,2'(5'H)-furan]-3,5'(2H)-dione;Drospirenone Related CoMpound A;17-epi-Drospirenone;Drospirenone EP Impurity E;Drospirenone Impurity 5（Drospirenone EP Impurity E）;Drospirenone EP Impurity E (Drospirenone Isomer)
17R-Drospirenone (Drospirenone EP Impurity E) is a derivative of Drospirenone (D689500) with a reversed configuration of the 17-spirolactone ring had no biological activity. Drospirenone impurity.
