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CAS 566-48-3 Anti Estrogen Steroids Powder Formestane For Breast Cancer

CAS 566-48-3 Anti Estrogen Steroids Powder Formestane For Breast Cancer

  • CAS 566-48-3 Anti Estrogen Steroids Powder Formestane For Breast Cancer
  • CAS 566-48-3 Anti Estrogen Steroids Powder Formestane For Breast Cancer
  • CAS 566-48-3 Anti Estrogen Steroids Powder Formestane For Breast Cancer
  • CAS 566-48-3 Anti Estrogen Steroids Powder Formestane For Breast Cancer
CAS 566-48-3 Anti Estrogen Steroids Powder Formestane For Breast Cancer
Product Details:
Place of Origin: Hubei, China
Brand Name: bodybiological
Certification: IS09001, SGS
Model Number: 566-48-3
Payment & Shipping Terms:
Minimum Order Quantity: 10gram
Price: USD1/gram
Packaging Details: Foil bag
Delivery Time: within 24 hours after the payment
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 350kg/month
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Detailed Product Description
Keywords: Formestane Alias: Lentaron
CAS: 566-48-3 Appearance: White Powder
Shipping Method: FEDEX, TNT, DHL, UPS, HK EMS Payment Terms: Money Gram, Western Union, Bank Transfer
Delivery Time: Within 24 Hours After The Payment MOQ: 10gram
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CAS 566-48-3 Lentaron Anti Estrogen Steroids Formestane For Breast Cancer

 

Chemical Composition

Chemical Designation: 4-Hydroxyandrost-4-ene-3,17-dione

Formula: C 19 H 26 O 3

Molecular Mass: 302.408 g/mol

Active Ingredient: Formestane

Inactive Ingredient: Sodium Chloride

Half-Life: Approx. 30 Hours

 

Description

 

Lentaron, a.k.a. formestane, belongs to a class of drugs known as 2 (or second generation) aromatase inhibitors which are primarily used in the treatment of estrogen-receptor positive breast and ovarian cancers in post-menopausal women. Some cancers require estrogen to grow, and aromatase is an enzyme that synthesizes estrogen. Aromatase Inhibitors (AIs) are a class of drugs that effectively block this synthesis thereby lowering estrogenic levels, and slowing the growth of cancers.

 

Formestane was the first selective, type I, steroidal aromatase inhibitor used in the treatment of estrogen-receptor positive breast cancer in post-menopausal women. Formestane suppresses estrogen production from anabolic steroids or prohormones. It also acts as a prohormone to 4-hydroxytestosterone, an active steroid which displays weak androgenic activity in addition to acting as a mild aromatase inhibitor. It is listed as a prohibited substance by the World Anti-Doping Agency for use in athletes. Formestane has poor oral bioavailability, and thus must be administered forthnightly (bi-weekly) by intramuscular injection. Some clinical data has suggested that the clinically recommended dose of 250mg was too low. With the discovery of newer, non-steroidal and steroidal, aromatase inhibitors which were orally active and less expensive than formestane, formestane lost popularity. Currently, formestane (categorized as an anti-estrogenic agent) is prohibited from use in sports in accordance to the regulations of the World Anti-Doping Agency. It is not US FDA approved, and the intramuscular injection form of formestane (Lentaron) which was approved in Europe has been withdrawn.

 

Dosage

 

Lentaron is available as an intramuscular depot injection, and is often found in 2 ml ampules of 125 mg/ml solution. The recommended dosage for bodybuilder purposes is the same as that for advanced breast cancer therapy, namely 250 mg per week. Formestane can also be found, and taken in the same 250 mg per week dosage in its oral form, but the oral had poor bioavailability is no longer a popular version of this drug.

 

Additional Information

 

Lentaron is not widely available as a prescription drug, and is therefore infrequently found within steroid circles. It is very effective when added to anabolic cycles of aromatizing steroids like Dianabol, testosterone (cypionate, propionate, and enanthate), Trenbolone, and Deca-Durabolin.

 

COA

 

Product name Formestanes
Appearance White crystalline powder
Chromatographic purity Any individual impurity not more than 1.0%
Total impurities not more than 2.0%
0.27%
0.7%
Loss on drying Not more than 0.5% 0.1%
Residue on ignition Not more than 0.2% 0.1%
Residual solvents Methanol≤3000ppm
Methylene Chloride≤600ppm
Chloroform≤60ppm
Tetrahydrofuran≤720ppm
350ppm
Not detect out
Not detect out
Not detect out
Assay Between 97.0% and 102.0% 99.2%
Micronixation 90% not more than 10 microns 90% not more than 10 aicrons

 

Body Biological Co., Ltd. has been developing and producing high quality products under stric GMP conditions. Quality control and quality assurance are given high priority in order to meet international pharmacopoeia specifications and special customer’s requirements.
1. Method of Analysis for testing our materials are validated to give the re-producible results
2. All the analytical test procedures and manufacturing procedures are well documented and revision is undertaken as per specified protocol.
3. Trend analysis of purified water and final products are maintained.
4. Stability study is a very important area of quality assuance.

 

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