3- hydroxy- 1,3,5(10),8,9- estratetraen- 17- one

a third equine estrogen component of Premarin; structure in first source

Also Known As:

8,9-dehydroestrone

Networked: 1 relevant articles (0 outcomes, 1 trials/studies)

1.	Breast Neoplasms (Breast Cancer) 06/01/2001 - "Finally, preliminary studies conducted with the human breast tumor S-30 cell lines demonstrated that the catechol metabolites of 8,9-dehydroestrone were much less toxic than 4-hydroxyequilenin (20-40-fold). "