| Message: | Product Name: 4-HYDROXYTESTOSTERONE
CAS：566-48-3
Molecular Formula: C19H28O3
Molecular Weight: 304.42
Standard: Enterprise Standard
Synonyms: 4-HYDROXYTESTOSTERONE;4-ANDROSTEN-4,17-BETA-DIOL-3-ONE
Description:
Formestane (Lentaron) is a type I, steroidal aromatase inhibitor. It is used in the treatment of estrogen-receptor positive breast cancer in post-menopausal women. It is available as an intramuscular depot injection.
Formestane is often used to suppress estrogen production from anabolic steroids or prohormones. It also acts
as a prohormone to 4-hydroxytestosterone, an active steroid which displays weak androgenic activity in addition to acting as mild aromatase inhibitor.
Formestane has poor oral bioavailability and as such is no longer popular as many orally active aromatase inhibitors have been identified.
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