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566-48-3 White Crystalline Safest Anabolic Steroid Raw Powder Formestane Lentaron

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566-48-3 White Crystalline Safest Anabolic Steroid Raw Powder Formestane Lentaron

China 566-48-3 White Crystalline Safest Anabolic Steroid Raw Powder Formestane Lentaron supplier
566-48-3 White Crystalline Safest Anabolic Steroid Raw Powder Formestane Lentaron supplier 566-48-3 White Crystalline Safest Anabolic Steroid Raw Powder Formestane Lentaron supplier

Large Image :  566-48-3 White Crystalline Safest Anabolic Steroid Raw Powder Formestane Lentaron

Product Details:

Place of Origin: China
Brand Name: GB
Certification: ISO9001

Payment & Shipping Terms:

Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: Foil bag inside and hard box outside
Delivery Time: 3 work days
Payment Terms: Western Union, MoneyGram, T/T
Supply Ability: 100kg per month
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Detailed Product Description
Product Name: Formestane Trade Name: Lentaron
CAS: 566-48-3 Catalogy: Steroidal AI
Appearance: Off-white Crystalline Powder Certification: GMP,ISO9001
High Light:

non estrogenic steroids

,

bodybuilding anabolic steroids

 

566-48-3 White Crystalline Safest Anabolic Steroid Raw Powder Formestane Lentaron

 

 

Product name Formestane
Trade name Lentaron
Chemical name 4-hydroxy-androst-4-ene-17-dione
CAS 566-48-3
MF C19H26O3
MW 302.41
Catalogy aromatase inhibitor steroid
mp 199-202°C
Usage As a aromatase inhibitor,used in breast cancer or bodybuilding anti-estrogen
Appearance off-white crystalline powder

 

 

Description :

 

1. 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.

 

2. 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.

 

3. AIs are categorized into two types: 1) non-steroidal inhibitors such as Arimidex (anastrozole) and Femera (Letrozole) which inhibit the enzyme by reversible competition and; 2) irreversible steroidal inhibitors such as Aromasin (exemestrane) which form a permanent bond with the aromatase enzyme complex.

 

4. Lentaron is classified in the second group as a selective irreversible steroidal aromatase inhibitor. Derived from androstenedione (the same except for the addition of a 4-hydroxyl group), formestane forms an irreversible bond with the aromatase enzyme which permanently deactivates it.

 

5. It takes several days (following formestane discontinuation) for aromatase to become active again. These types of drugs are often referred to as suicidal aromatase inhibitors because the drugs seemingly sacrifice themselves (their structural independence) in the process of blocking estrogen.

 

566-48-3 White Crystalline Safest Anabolic Steroid Raw Powder Formestane Lentaron

 

Formestane COA:

 


TEST ITEMS

SPECIFICATION

RESULTS

Description

: White or Almost White Crystalline Powder

white powder

Identification

: A.B.

Positive

Assay

: 97.0~103.0%

99.3%

Specific Rotation

: +101°~+105°

+102.6°

Loss On Drying

: 1.0%max

0.27%

Melting Point

: 153~157°C

153.0~155.0°C

Organic Volatile Impurities

: meets the requirement.

Conforms

Related Substances

: meets the requirement.

Conforms

Residual Solvents

: meets the requirement.

Conforms

Particle Size

: 100% ≤ 20 microns

Conforms

Conclusion

The specification conform with USP30 standard

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