Guangzhou Kafen Biotech Co.,Ltd
|Place of Origin:||China|
|Minimum Order Quantity:||As your required.|
|Packaging Details:||According to your requirements.|
|Delivery Time:||Within 24 hours after receiving your payment.|
|Payment Terms:||Western Union,Money Gram,Bank Transfer,Bitcoin|
|Assay:||99%||Appearance:||White Crystalline Powder|
Product name: Formestane
Other name: Lentaron; FORMESTAQNE; Hydroxyandrostenedione
CAS Registry Number: 566-48-3
Assay: 98%Packing: 1kg/aluminum foil bag
Molecular Formula: C19H26O3
Molecular Weight: 302.41
Appearance: White crystalline powder
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US FDA approved, and the intramuscular injection form of formestane (Lentaron) which was approved in Europe has been withdrawn.
Formestane (Lentaron) is a type I, steroidal aromatase inhibitor. It is used in the treatment of estrogen-receptor positive breast cancer in post-menopausal women. It is available as an intramuscular depot injection.
Formestane is often used to suppress estrogen production from anabolic steroids or prohormones. It also acts as a prohormone to 4-hydroxytestosteron, an active steroid which displays weak androgenic activity in addition to acting as a mild aromatase inhibitor.
Formestane has poor oral bioavailability and as such is no longer popular as many orally active aromatase inhibitors have been identified.
Formestane is a second generation, irreversible, steroidal aromatase inhibitor. It inhibits the aromatase enzyme responsible for converting androgens to estrogens, thereby preventing estrogen production. Breast cancer may be estrogen sensitive or insensitive. A majority of breast cancers are estrogen sensitive. Estrogen sensitive breast cancer cells depend on estrogen for viability. Thus removal of estrogen from the body can be an effective treatment for hormone sensitive breast cancers. Formestane has been targeted specifically for the treatment of postmenopausal women. Unlike premenopausal women who produce most estrogen in the ovaries, postmenopausal women produce most estrogen in peripheral tissues with the help of the aromatase enzyme. Formestane, an aromatase inhibitor, can thus help to decrease the local production of estrogen by blocking the aromatase enzyme in peripheral tissues (ie. Adispose tissue of the breast) to treat hormone sensitive breast cancer.
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(1) High Quality:Kafen Biotech is a steroids manufacturer with its own lab and factory.
The purity of our product is tested by our quality department before it is shipped to our clients. Mostly steroids are 99% purity and approved by SGS,CTI and ITS.
(2) Favorable Price: Our price meets international market performance and we give the best doiscounted price for our new customers and promotioned price for our regular customers.
(3) Safe Fast Delivery: After receiving your payment,we will have professional package team to arrange your parcel within 12 hours.We can guarantee every goods can be successfully deliveried.
(4) Available Shipment Way: EMS,HongKong Post,DHL,TNT,UPS,FedEx,Registered Mail,Air Express,Sea Vessel etc.
(5) After-Sale Service: We can offer you good service after you place an order.At the same time,we can offer you some homebrew recipe to make injection.More service is more available to you.