Desogestrel Impurity 3

Chemical Name: (8S,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-11-methylene-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one

Synonym: N,N′-diisopropylethane-1,2-diamine (N,N′-bis(1-methylethyl)ethane-1,2-diamine),