≥99% HPLC PurityMS ConfirmedJanoshik COADomestic USA Shipping
Letrozole (Femara) Research — Pennsylvania
Letrozole (Femara) is a Non-steroidal aromatase inhibitor (type II AI) used in research models studying Maximal Aromatase Inhibition Research, ER-Positive Breast Cancer Research, Fertility Research — Ovulation Induction. QSC supplies Letrozole to research institutions, university laboratories, and independent researchers across Pennsylvania with domestic USA shipping and third-party Janoshik COA verification.
About Letrozole (Femara)
Letrozole is a non-steroidal triazole aromatase inhibitor — the most potent of the third-generation AIs (IC50 ~2 nM, approximately 5× more potent than anastrozole). Reversibly inhibits CYP19A1 by coordinating the triazole nitrogen to the haem iron of the enzyme. Suppresses oestradiol >99% at standard doses in postmenopausal women. Greater oestrogen suppression than anastrozole makes it the referen…
QSC operates a domestic USA fulfilment network with 5-region shipping coverage. Orders to Pennsylvania ship from the nearest domestic hub — typically 3–5 business days. All compounds ship in sealed, temperature-appropriate, discrete packaging with Janoshik COA documentation.
