Product Certification&
Enterprise Certification
Country: China (Mainland)
Business Type:Trading Company
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Tel: +008618049624045
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URL: http://LookChem.com
Province/state: Shaan xi
City: xi'an
Street: Xi'an
MaxCard:
CAS NO.112809-51-5
Powder(1-50)GramPowder(50-100)GramPowder(100-500)GramPowder(500-1000)Gram
1. Who are we
We are based in Shaanxi, China, start from 2018,sell to North America(00.00%),
Western Europe(00.00%),South America(00.00%),Southeast Asia(00.00%),
Eastern Europe(00.00%). There are total about 11-50 people in our office.
2. How can we guarantee quality
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us
Plant Extracts,Cosmetics Raw Materials,Vitamin Raw Materials,Pharmaceutical Raw Materials and Intermediates.
4. Why should you buy from us not from other suppliers
Our company mainly devoted in producing pharmacetical intermediates , Vitamins , and health supplement ,
the quality and technical content can reach the advance level in China .
Our products are sold well in China as well as in more than 20 countries.
5. What services can we provide
Accepted Delivery Terms: FOB,CFR,CIF,EXW,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,MoneyGram,Credit Card,,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian.
6.We promise our customer following items
Support product customization:
We can provide OEM&ODM , Because we have a professional design team.
Reasonable price:
We provide high quality products with competitive price in china,
Low MOQ:
No worry about the low moq, our moq is 1 gram or lower.
Good and efficient service,Fast Delivery
Fast respond save client's time, we promise to reply inquiry in 24 hours including holidays and send quotation sheet and other documents in 48 hours.
Super-good quality
We have strict quality control system .Good reputation in Market , And have the Third party test report is available.
Anti Estrogen Breast Disease Treatment Letrozole Powder
Product Name: |
Letrozole |
CAS: |
112809-51-5 |
MF: |
C17H11N5 |
MW: |
285.3 |
EINECS: |
675-034-8 |
Melting point |
181-183°C |
Boiling point |
563.5±60.0 °C(Predicted) |
Form |
White Powder |
1. Letrozole is an anti-Estrogen of the Aromatase Inhibitor (AI) family and is one of the most potent and powerfully
effective of all AI’s. In fact, its potency is sometimes too much for some to handle when used for off label use.
Letrozole first gained U.S. FDA approval in 1997 and would hit the market under the brand name Femara through
Novartis.
2. Although Femara is the dominating trade name of the AI, unlike most AI’s it is the only one generally known
by its chemical name Letrozole far more commonly than its dominating brand name.
3. Letrozole was first developed in an effort to combat breast cancer in post-menopausal women. In fact, it would
prove to be virtually identical to the already popular AI in Arimidex (Anastrozole). While intended for breast cancer
treatment, like many AI’s, it has found a welcomed home among anabolic steroid users.
4. Letrozole is one of the most commonly used anti-estrogens among steroid users during steroid use to combat
possible estrogenic related side effects. It is so effective as an anti-estrogen in this regard many anabolic steroids
have effectively reversed gynecomastia symptoms with Letrozole.
Function & Application
1. Letrozole is an AI, which holds the purpose of blocking the aromatase enzyme, which is in turn responsible for the
production of estrogen. By inhibiting estrogen production, this lowers total serum estrogen levels in the body.
2. This will be useful to the breast cancer patient on the basis of such cancer often feeding off the estrogen hormone.
It will be beneficial to the anabolic steroid user as excess estrogen often leads to some of the most commonly
associated side effects of anabolic steroid use.
3. Letrozole also carries the ability to increase natural estrogeneproduction through an increase in Luteinizing Hormone
(LH) and Follicle Stimulating Hormone (FSH). There have been physicians who have chosen Letro as it’s often known
to treat low testosterone conditions, but this is normally not the preferred method of treatment.
4. Without question, when it comes to low testosterone treatment exogenous testosterone is generally the only thing
that makes sense. However, Letrozole can be useful in such a plan in conjunction with exogenous testosterone in order
to combat possible side effects. We will look into this in the effects section.
Tests |
Specifications |
Results |
Appearance |
White or off-white crystaline powder |
White Crystalline powder |
Solubility
|
Soluble in Chloroform; Soluble in ethanol when heated |
Conform |
ldentification |
(1)Maximum absorption in wavelength of 240 nm Minimum absorption in wavelength of 215 nm |
Conform Conform |
(2)Infrared spectrum should be in accordance the dominant peak of contrast |
In accordance with the dominant peak of contrast |
|
Melting points |
182°C-184°C |
182°C |
Related substances |
≤0.5% |
0.3% |
Single impurity |
≤0.3% |
0.2% |
Loss on drying |
≤1.0% |
0.8% |
[Assay]C17H11N5 (On anhydrous basis) |
≥98.0% |
99.2% |
Conclusion |
Conforms Specifications of Enterprise Standard. |
1. All inquiries will be replied within 12 hours.
2. Dedication to quality, supply & service.
3. Strictly on selecting raw materials.
4. OEM/ODM Available.
5. Reasonable & competitive price, fast lead time.
6. Sample is available for your evaluation & Formulation development.
7. Faster delivery:Sample order in stock and 3-7 days for bulk production.
8.We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder
9. After-Sale Service:
1) International Authorized Third-Party Test For The Products You Demand.
2) 30 Days Warranty of quality of goods.
Delivery & Payment Terms
Julong Bio-Tech Co., Ltd. is located in Xi'an City, Shaanxi Province, China. It is a biotechnology enterprise engaged
in the research, development, production and sales of animal and plant extracts, cosmetics, pharmaceutical raw materials
and intermediates. The company has complete experimental facilities. And advanced testing instruments ensure the stability
of product quality from all aspects. The company has a complete sales service system, the products are exported to countries
all over the world, and have won a good international reputation with excellent quality and excellent service.
The company has been adhering to the basic principles of "integrity, quality, service, and win-win" to serve customers,
constantly strict requirements, set goals, and implement win-win development.
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