Desogestrel Impurity 5

Chemical Name: (8S,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-11-methylene-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-ol

Synonym: Di-tolyl impurity ; (2R,3S,5R)-5-(4-amino-2-oxo-1,3,5-triazin-1(2H)-yl)-2-(((4-methylbenzoyl)oxy)methyl)tetrahydrofuran-3-yl 4-methylbenzoate