Statement of Formestane

Item name: Formestane

CAS: 566-48-3
Molecular Formula: C19H26O3
Molecular Weight: 302.41 g/mol
Specification: Enterprise standard

Formestane belongs to a class of drugs known as 2 aromatase inhibitors. It is used in the treatment of estrogen-receptor positive breast cancer in post-menopausal women. It is available as an intramuscular depot injection (Lentaron).

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 a mild aromatase inhibitor.

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