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|Appearance:||White Crystalline Powder||Grade:||Pharmaceutical Grade|
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Femara Anti Estrogen steroids Letrozole pharmaceutical grade 112809-51-5
Alias: Femara, Lelrozol, TROZET,Letroz,Lelroz, letrozolex
CAS Registry Number:112809-51-5
Appearance: White crystalline powder.
Letrozoles are non suicidal Aromatase Inhibitors, belonging to the third generation of aromatase inhibitors. They are administered orally and hold the approval of the Food and Drug Administration of the United States (FDA) for use in treating two particular kinds of breast cancer. One is the case when hormone receptor positive breast cancer develops locally or is contracted through metastatis. The other is a similar case but when the cancer is of the estrogen receptor unknown category.
The estrogen receptor unknown category refers to those breast cancer conditions where the role of estrogens can not be determined with certainty. In these cases, it is impossible to predict if estrogen caused the cancer in the first place or if it would complicate and worsen the cancer further. Letrozoles are used in the treatment of such cancer conditions in post menopausal women. It is however rare that Letrozole be required for treating the post menopausal estrogen receptor unknown cancer, first-line. In most cases, it is used only after the usual first-line treatments using Selective Estrogen Receptor Modulator drugs like the Nolvadex have failed to show any positive effects.
Letrozole is a powerful Aromatase Inhibitor that was developed to fight breast cancer. For athletes and bodybuilders, it is a drug used to combat the estrogenic side effects of anabolic steroids water-retention, acne and gynocomastia. It will also raise testosterone levels because of the lowered estrogen in the body. Side effects from Letrozole include a lowered sex drive and continuous use can lead to lowered lipid function and an impaired immune system.
Dosages and Half Life
The half life is approximately 2-4 days. Dosages vary quite a bit, 0.25mg up to 1mg every day or every other day is a good starting dose. It’s best to be conservative with the dosage because if you overdose the sides can be harsh.
|Appearance||White or off-white crystaline powder||White Crystalline powder|
|Solubility||Soluble in Chloroform;
Soluble in ethanol when heated
|ldentification||Maximum absorption in
wavelength of 240 nm Minimum
absorption in wavelength of 215 nm
|Infrared spectrum should
be in accordance the
dominant peak of contrast
|In accordance with the
dominant peak of contrast
|Loss on drying||≤1.0%||0.8%|
|Conclusion||Conforms Specifications of Enterprise Standard|
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