Superiority
We are the manufacturer of all kinds of hormone and steriod powders. We focus on providing customers with high quality products, competitive price, best service and timely delivery.
We guarantee you good quality products, and you are 100% refunded if your parcel is not delivered or is poor quality.
Price:
Please let us know the quantity you required, because for small order and bulk purchase, the price will be difference.
Payment methods:
Wire Transfer, Western Union,
We will supply the receiver’s information or the bank account information for payment use.
Shipping items:
Shipping items will be delivered by international express like EMS, TNT, UPS, FEDEX or DHL after receiving received.
Every item will be shipped out in 2-3 working days after the payment is done.
The product usually arrives in 4-10 days based on the different destination, and online track is provided.
Please kindly supply the company name, shipping address, contact and tel number for successful shipment.
Mix Order and Drop Shipping:
Mix order service and drop shipping service are available with us. You can choice several items of our products and request us send them in one mixed order.
Regarding drop shipping, we can arrange delivery according your request and do not supply any of our factory information for your safety sales network.
Storage:
Keep away from fire and heat source, hermetically deposit, keep in shady, cool and dry condition, protect against the tide.
Feedback:
We strive on make our customer satisfaction. Once received the products, please kindly give us a feedback so we can keep improving our products and service.
Should you have any problem, please let us know so we can work out with our joint efforts.
Welcome to contact us for more products information and requirement, we will do our best to cooperate with every client.
Details
Product Name:letrozole
CAS NO: 112809-51-5
Systematic (IUPAC) name: 4,4'-(1,2,4-triazol-1-ylmethyl)dibenzonitrile
Trade names: Femara
MF:C17H11N5
MW:285.3
Content: 99%
Molecular Formula: C17H11N5
Mol. mass: 285.303 g/mol
Quality standard: USP29
Apperance: white or off-white crystalline powder
Packing: 1kg/tin
Storage: shading, confined preservation.
Letrozole (INN, trade name Femara) is an oral non-steroidal aromatase inhibitor for the treatment of hormonally-responsive breast cancer after surgery.
Tamoxifen is also used to treat hormonally-responsive breast cancer, but it does so by interfering with the estrogen receptor. However, letrozole is effective only in post-menopausal women, in whom estrogen is produced predominantly in peripheral tissues (i.e. in adipose tissue, like that of the breast) and a number of sites in the brain. In pre-menopausal women, the main source of estrogen is from the ovaries not the peripheral tissues, and letrozole is ineffective.