Raw Lentaron Hormonal Antitumor formestane

Basic Informations:
Product Name: Formestanes, Lentaron, Formestane
CAS: 566-48-3
MF: C19H26O3
MW: 302.41
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Product Details

Lentaron Hormonal Antitumor Formestane 566-48-3 High Purity and Top Quality with reasonable price on Hot Selling!!

Basic Informations:

Product Name: Formestane

Other name: Lentaron, Formestanes;

CAS: 566-48-3

MF: C19H26O3

MW: 302.41

MOQ: 10-50G, Sample is available

Assay: 99% min

Appearance: White or colourless crystalline powder with characteristic odor

Usage : Application of Treat Breast Cancer for Post-menopausal Women 99% Formestane
Used for natural or artificial postmenopausal breast cancer patients, including tamoxifen and other endocrine treatment of patients is invalid.

Formestane also is known as lentaron,is an anti-cancer drug, it is primarily used for the treatment of postmenopausal women with advanced breast cancer, it is also effective in prostate cancer.

Molecular structure:


Formestane Dosages :

The most common version of formestane sold was in a topical gel form and it was dosed at 100-200mgs per application. Users would apply it onto clean, dry skin and rub in thoroughly; usually on the thighs or upper arms. It took 1 to 5 minutes to dry.

The injectable version for both breast cancer purposes and bodybuilders is 125mgs twice per week or 250mgs once per week.

Formestane COA :





White or Almost White Crystalline Powder

white powder







Specific Rotation



Loss On Drying



Melting Point



Organic Volatile Impurities

meets the requirement.


Related Substances

meets the requirement.


Residual Solvents

meets the requirement.


Particle Size

100% ≤ 20 microns



The specification conform with USP35 standard

Functions of Formestane:

1. Aromatase inhibitors. For progressive breast cancer.

2. This product is an aromatase inhibitor. It is similar to Aminoglutethimide. It has a stronger selective inhibitory effect on type I aromatase. The mechanism of this product's enzyme inhibition is through the active part of the carcass mother nucleus and enzyme. Combining with the normal enzymatic hydrolysate -----Estrogen dione competes with the active site, resulting in suicide inhibition, so that the aromatase is inactivated forever. This product is 60 times stronger than the aminoglutethimide in vitro. For the treatment of postmenopausal women with advanced breast tumors. Its toxic side effects are small and well tolerated.


How to proceed steroid order?

First: Please let me know the itmes you are looking for, quantity, and the destination country.
Second: You confirm all details, and offer us purchasing order;

Third: We send the detail price of our product and offer suitable shipping method reference.

Forth: You confirm the order and pay money 100% in advance and send us detail address.

Fifth: We arrange the shipment according to your requirements.

Sixth: We offer after-sales service after you receive parcel;


What's more you get all this at your doorsteps. For more information on who we are and what we do please drop us a mail and we would love to get back to you.


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