Molecular Formula: C21H28O2 Formula Weight: 312.45
Levonorgestrel;(±)-Norgestrel;(17α)-(±)-13-Ethyl-17-hydroxy-18,19-dinorpregn-4-en-20-yn-3-one;13β-Ethyl-17α-ethynyl-17β-hydroxygon-4-en-3-one;17α-Ethynyl-18-homo-19-nor-testosterone