| 17-hydroxy-19-nor-17-alpha-pregna-20-dien-3-one |
| 17-alpha-vinyl-19-nortestosterone |
| 17-hydroxy-17-alpha-vinyl-4-estren-3-one |
| 17-hydroxy-19-nor-17-alpha-pregna-4,20-dien-3-one |
| 17-vinyl-19-nortestosterone |
| 19-nor-17-alpha-vinyltestosterone |
| neoprogestin |
| nor-progestelea |
| norvinisterone |
| sc 4641 |
