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4-Hydroxy Testosterone
Alias:Formestane;-Hydroxyandrost-4-ene-3,17-dione
CAS NO:566-48-3
Molecular weight:302.4126
Molecular formula:C19H26O3
Use:As Aromatase inhibitors.Used for breast cancer.
Packing:Foil bag or as requirments
Manufacture:QuanAo

More details:
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 an active steroid which displays weak androgenic activity in addition to acting as a mild aromatase inhibitor.
Formestane has poor oral bioavailability and as such is no longer popular as many orally active aromatase inhibitors have been identified.