Name Letrozole (Femara)
Synonyms 4,4′-(1h-1,2,4-triazol-1-ylmethylene) bis-benzonitrile
CAS 112809-51-5
MF C17H11N5
MW 285.3
Molecular Structure Breast Cancer Treatment Antineoplastic Letrozole Raw Powder Femara MW 285.3
Melting Point 182ºC-184ºC
Product Categories Anti-Cancer;Pharmaceutical material and intermeidates;Antineoplastic;

All Inhibitors;anti-neoplastic;Inhibitors;Antibiotics;Aromatics;Heterocycles

Assay ≥98.0%
Character White to light yellow crystal Powder


Letrozole Usage:


1). Femera, commonly known as Letrozole is an anti-estrogen medication more aptly labeled an aromatase inhibitor (AI.)

2). Originally developed in the fight against breast cancer, the purpose of Letro as it is often called

is to reduce and inhibit estrogen buildup as excess estrogen has been directly linked to breast

cancer; often the medication is given to patients as part of their post-surgery therapy.

3). Letrozoleis not an anabolic steroid in any shape or form but belongs to the aromatase inhibitor

family and by its very nature its primary mode of action is just inhibiting aromatase.

4). Letrozole directly affects estrogen by blocking the aromatase enzyme or better yet by blocking or inhibiting the aromatase process.

5). By its nature Letrozole greatly reduces the amount of estrogen in the body and prohibits estrogen

from conversion as is a common occurrence with many anabolic androgenic steroids.

6). By supplementing with Letrozole while on cycle we can prevent side-effects from occurring or at

least greatly aid in the process.