90457-65-1

17R-Drospirenone 17-epi-Drospirenone Drospirenone EP Impurity E Drospirenone Related CoMpound A Drospirenone USP Related Compound A Drospirenone EP Impurity E (Drospirenone Isomer) Drospirenone Impurity 5（Drospirenone EP Impurity E） Trospirone ethinylestradiol EP impurity E(R configuration) Drospirenone Related Compound A (17-Hydroxy-6beta,7beta:15beta,16beta-dimethylene-3-oxo-17beta-preg (1229410) 3-oxo-6α,7α,15α,16α-tetrahydro-3′H,3″H dicyclopropa[6,7:15,16]pregn-4-ene-21,17-carbolactone (17-epidrospirenone), Drospirenone Related Compound A (15 mg) (17-Hydroxy-6beta,7beta:15beta,16beta-dimethylene-3-oxo-17beta-pregn-4-ene-21-carboxylic acid, gamma-lactone) Spiro[17H-dicyclopropa[6,7:15,16]cyclopenta[a]phenanthrene-17,2'(5'H)-furan]-3,5'(2H)-dione, 1,3',4',6,7,8,9,10,11,12,13,14,15,16,20,21-hexadecahydro-10,13-dimethyl-, (6R,7R,8R,9S,10R,13S,14S,15S,16S,17R)- [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