Fulvestrant

Product Name	CAS 129453-61-8
Appearance	White crystal powder
Standard packing material	Aluminum foil bag inside, then waterproof bag or carton
Purity	99%
Storage	Preserve in tight,light-resistant containers in a cool place

Fluvestrant is an intramuscular drug developed by Astrazeneca and approved by the US Food and Drug Administration in April 2002 for the treatment of estrogen receptor-positive metastatic breast cancer in postmenopausal women whose disease continues to progress after anti-estrogen therapy. Many breast cancer cells have an estrogen receptor (ER), which stimulates the growth of these tumors. Flulvesant is a "pure" estrogen receptor antagonist without partial estrogen-like excitatory effect. It inhibits estrogen signaling pathways by binding, blocking and down-regulating ER, and can competitively bind to ER, with an affinity close to estrogen, 100 times that of tamoxifen. It is the only anti-estrogen drug that can be widely used in clinical practice after the failure of tamoxifen. Because this drug is endocrine therapy, it will not cause common adverse reactions of chemotherapy, so it has good compliance of patients. A number of clinical studies have found that the 250mg dose of flavixotron has a good therapeutic effect and is safe and stable in the second-line treatment of advanced breast cancer.

Packing & Shipping

   Hebei Lingding Biotechnology Co., Ltd. is a professional business company ,that include pharmaceutical raw materials, pharmaceutical intermediates,and other more than 1000 products of the enterprise,  The registered capital is 3 million yuan, it is a collection of scientific research, production and sales in one of the enterprises.

Since its establishment, the company has always adhered to the core concept of "focus on products, attentive service", adhere to the business purpose of "innovation, professional, win-win", to provide customers with a full range of meticulous and thoughtful services. We will adhere to the customer's serious and responsible attitude, comply with the standardized operation procedures, with efficient execution to complete customer needs.

The company's products are sold all over the world, mainly exported to the United States, Europe, Southeast Asia, Australia, the Middle East and South Africa and other countries.The company has a strong scientific research and technical team, can provide customers with high quality products and a full range of services. We will provide first-class products and better service to face the needs of customers, to meet the challenges of the market.  Welcome domestic and foreign customers to negotiate.
Our Services
 1.Any inquiry or message will be replied within 12 hours.
 2.Professional manufacturer. Welcome to visit our website.
 3.API, Intermediate are available, we can offer Custom Synthesis, and registration as well.
 4.Fast delivery.
 5.After-sale services
FAQ
 Q1. Are you a manufacturer?
Answer: Yes, we have our own factory.

Q2. Do you have GMP or DMF?
Answer: Yes, we have GMP certificate for some products, and we can provide DMF as well.

Q3. What information should I let you know if I want to get a quotation?
Answer: -Quality you require, eg. Assay, Purity, or single impurity
-Quantity you need
-Standard you want, such as USP, EP, JP etc.

Q4. How to make the payment?
Answer: T/T in advance are highly recommended. We can accept Western Union,
Money Gram and Paypal as well.

Q5. When will you deliver the goods?
Answer: For sample(less than 1kg), in about 3 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment.

Q6. How will you deliver the goods?
Answer: We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS, China Air Post. For container products, we can do sea shipping. You also can choose your own shipping forwarder.

Q7. When will we receive the goods?
Answer: For samples, we will send by TNT/DHL/FEDEX/UPS express, usually it takes about 3-5 to reach you; for larger orders, it will take about 7 -10days at most.

Q8. What if we find your products unsatisfied?
Answer: We will send you a COA (Certificate of Analysis) to you first for you to confirm the quality, but if you find our products not confirm with the COA after you receive it, please show us your test result, we will refund you once we confirm that.
 
Q9.Do you have stock?
Answer:As we know,most customers prefer stock,so we will try to keep stock for some products.