Product Description
| Product Name | Norethindrone EP Impurity B |
| Synonyms | ester-4-ene-3,17-dionenorandrostenedione
(8R,9S,10R,13S,14S)-13-methyl-7,8,9,10,11,12,13,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17(2H,6H)-dione |
| Related API | Norethindrone |
| Category | Impurities |




