Spironolactone Impurity 1

Chemical Name: (7R,8R,9S,10R,13S,14S,17R)-10,13-dimethyl-7-((S)-methylsulfinyl)-1,3',4',6,7,8,9,10,11,12,13,14,15,16-tetradecahydro-5'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,5'(2H)-dione

Synonym: Threonine

Smile: C[C@@]12[C@@]3([H])CC[C@@]([C@@]4(OC(CC4)=O)CC5)(C)[C@]5([H])[C@]3([H])[C@H]([S@](C)=O)CC1=CC(CC2)=O