| 13-ethyl-17-hydroxy-19-dinor-17-alpha-pregn-4-en-20-yn-3-on (+)-1 |
| (-)-norgestrel |
| 13-ethyl-17-alpha-ethynyl-17-beta-hydroxy-4-gonen-3-one |
| 13-ethyl-17-alpha-ethynylgon-4-en-17-beta-ol-3-one |
| 17-alpha-ethinyl-13-beta-ethyl-17-beta-hydroxy-4-estren-3-one |
| 17-beta-hydroxy-18-methyl-19-nor-17-alpha-pregn-4-en-20-yn-3-one |
| 17-ethynyl-18-methyl-19-nortestosterone |
| 18-methyl-17-alpha-ethynyl-19-nortestosterone |
| 18-methylnorethindrone |
| 17-ethynyl-18-methyl-19-nortestosteron |
| d(-)-norgestrel |
| d-norgestrel |
| follistrel |
| levonorgestrel |
| levonova |
| microluton |
| norplant |
| norplant 2 |
| norplant ii |
| postinor |
| wy-5104 |
| d(minus)-norgestrel |
| 13β-Ethyl-17α-ethynyl-17β-hydroxygon-4-en-3-one |
