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Formestane 566-48-3 Pharmaceutical Grade Anabolic Steroids Lentaron 4-Hydroxyandrostenedione

566-48-3

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Formestane 566-48-3 Pharmaceutical Grade Anabolic Steroids Lentaron 4-Hydroxyandrostenedione?

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Formestane?Alias: Lentaron
Formestane?CAS register number: 566-48-3
Formestane?Molecular formula: C19H26O3
Formestane?Molecular Weight:302.4126
Formestane?Melting point: 199-202°C
Formestane?Assay: 99%
Formestane?Appearance: white or light green crystalloid
Formestane?Grade: Pharmaceutical Grade

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Formestane?Description:

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Formestane (lentaron, chemical name: 4-hydroxyandrostenedione) is a type I steroidal aromatase?

inhibitor (AI). It was developed for use in treatment of estrogen-receptor-positive breast cancer in post-menopausal women. For medical purposes, it is made in intramuscular depot form and injected. It is not used in oral form due to poor bioavailability, which makes the oral version inferior to aromasin, letrozole, and arimidex.

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Anyway, all formestane is, is androstenedione with one little hydroxyl (OH) group atttached at the fourth carbon. This small alteration turns a lousy physique androgen which aromatizes highly and has no real true use for us...into one of the best anti-estrogens you can obtain (legal or otherwise).?
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Formestane has a very long active life on the order of 24-36 hours. You can get any sport supplement version capsules for around $40 US or less. This amount of $ will usually last you about 3-4 weeks at a sufficient dosage of 200-400mg per day. I have found 200mg a day to be perfect for on cycle anti-estrogen usage and for post-cycle recovery of natural testosterone. Formestane has zero negative feedback (even though it is an androgen by definition) and serves to elevate natural testosterone as well as any anti-estrogen/anti-aromatase drug out there, next to clomid.

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Formestane Application:

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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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Formestane COA:

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Product name | Formestane |
Appearance | White crystalline powder |
Assay(*) | 98~101.0% | 99.20% |
Identification | By UV, To match with working standard | Complies |
Related Substances | Not more than the reference solution (0.05%) | Complies |
Heavy metals | ≤20ppm | 10ppm |
Loss on drying | <0.5% | 0.10% |
Resiue on ignition | ≤0.1% | 0.05% |
Melting | 199-202°C | 200°C |
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Order Process:


1. Please tell me the details about products you need, which include product name and quantity.
2. We quote ,?offer payment terms and shipping methods.
3. You agree and choose one of payment terms which you convinent.
4. We arrange packing and shipment after received money.
5. We offer good after-sale service after you receive goods.

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Other Details:


1. Lead Time: Within 12hours after you payment
2. Delivery Time: 3-7 working days
3. Packing: Very discreet or as your requirement
4. Shipping: DHL / TNT / UPS / HKEMS / FEDEX / ETC.
5. Tracking number: The tracking number will give to you after goods send out at first time.
6. After-sales service: 24/7 online for you to solve problems.

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