Pharmaceutical-grade peptides & lab-use compounds available online.
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Free US shipping for orders above $600
This product is intended solely for use as a research chemical in vitro and laboratory experimentation by licensed, qualified professionals.
Letrozole (brand names Femara) is a third-generation nonsteroidal aromatase inhibitor (AI) primarily used to treat hormone receptor-positive breast cancer in postmenopausal women.
| Specifications | Price |
|---|---|
| 2.5mg × 100 tablets/bottle | $25.00 |
HPLS
Testing
Endotoxin
Assay
TYMC
Test
TYMC
Test
Heavy Metal
Screening
| Property | Details |
|---|---|
| Molecular Formula | C₁₇H₁₁N₅ |
| Molecular Weight | 285.30 g/mol |
| CAS Number | 112809-51-5 |
Estrogen is produced in postmenopausal women mainly through the aromatase enzyme, which converts androgens into estrogen.
Letrozole blocks this enzyme, significantly reducing estrogen levels.
This estrogen suppression helps prevent cancer recurrence and may also be prescribed off-label for other hormone-related conditions.
Breast Cancer Treatment
Reduces recurrence risk by 50% in hormone receptor-positive (ER+/PR+) breast cancer.
Superior to tamo*ifen in progression-free survival and overall response rates
Off-Label Uses
Ovulation induction in polycystic ovary syndrome (PCOS) (unapproved but clinically used).
Endometriosis management (limited evidence).
Some athletes and bodybuilders use Letrozole to counteract estrogen-related side effects of anabolic steroids, such as gynecomastia (male breast tissue growth).
Metabolic & Safety Advantages
No significant liver to*icity (unlike tamo*ifen, which causes fatty liver).
Minimal impact on lipids/cholesterol compared to steroidal AIs.
Disclaimer:All product is sold solely for scientific research purposes. Researchers are responsible for ensuring compliance with local regulations and institutional guidelines. Keep out of reach of children and unauthorized personnel.
All products are sold solely for scientific research purposes. Researchers are responsible for ensuring compliance with local regulations and institutional guidelines. Keep out of reach of children and unauthorized personnel.
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