Letrozole Powder Femara API Aromatase Inhibitor For Sale Letrozole Femara Basic Info: КАС №: 112809-51-5 М.Ф.: C17H11N5 M.W.: 285.3 Температура плавления: 181-183 ℃ Appearance: White crystalline powder What is Femara (Летрозол) ? Letrozole is an anti-estrogen of the Aromatase Inhibitor (ИИ) family and is one of the most potent and powerfully effective of all AI’s. Фактически, its potency is sometimes too much …