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CAS NO.112809-51-5
A(1-10)Metric TonA(20-50)Metric Ton
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CAS 112809-51-5 Letrazole / Femara Anti Estrogen Steroid Raw Powder With Fast And Safe Delivery
Letrozole
CAS:112809-51-5
MF:C17H11N5
MW:285.3
Synonyms:LetrozoleUsp28;Letrozole99%;CGS-20267, Femara;LETRAZOLE;letrozolex;Lelrozol;1-[BIS(4-CYANOPHENYL)METHYL]-1,2,4-TRIAZOLE;4,4'-(1H-1,2,4-Triazol-1-ylmethylene)dibenzonitrile
Properties
Melting point:181-183°C
storage temp. -20°C Freezer
solubility DMSO: >50mg/mL
color white to off-white
Merck 14,5450
InChIKeyHPJKCIUCZWXJDR-UHFFFAOYSA-N
Description
Letrozol is an anti-estrogen of the Aromatase Inhibitor family and is one of the most potent and powerfully effective of all AI's.It was first developed in an effort to combat breast cancer in post-menopausal women.Letrozol is an oral aromatase inhibitor which is a non-steroidal drug. Letrozol treats hormonally responsive breast cancer after the surgery in females past menopause. It belongs to the class of drugs known as Aromatase inhibitors and Hormones antineoplastics.It acts by decreasing the quantity of estrogen synthesized in the body.And it is one of the most commonly used anti-estrogens among steroid users during steroid use to combat possible estrogenic related side effects. It is so effective as an anti-estrogen in this regard many anabolic steroids have effectively reversed gynecomastia symptoms with Letrozol.
Application
Letrozol is used treat early breast cancer in women who have experienced menopause and who have had other treatments, such as radiation or surgery to remove the tumor.In fact,it would prove to be virtually identical to the already popular AI in Arimidex .Letrozol is in a class of medications called nonsteroidal aromatase inhibitors. It works by decreasing the amount of estrogen produced by the body. This can slow or stop the growth of some types of breast cancer cells that need estrogen to grow.
Letrozol 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.
COA
| Tests | Specifications | Results |
| Appearance | White or off-white crystaline powder | White Crystalline powder |
| Solubility | Soluble in ethanol when heated |
Conform |
| ldentification | (1)Maximum absorption in wavelength of 240 nm Minimum absorption in wavelength of 215 nm |
Conform Conform |
| (2)Infrared spectrum should be in accordance the dominant peak of contrast | In accordance with the dominant peak of contrast | |
| Melting points | 182ºC-184ºC | 182ºC |
| Related substances | ≤0.5% | 0.3% |
| Single impurity | ≤0.3% | 0.2% |
| Loss on drying | ≤1.0% | 0.8% |
| [Assay]C17H11N5 (On anhydrous basis) |
≥98.0% | 99.2% |
| Conclusion | Conforms Specifications of Enterprise Standard. | |
Usage
Letrozol 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 Letrozol include a lowered sex drive and continuous use can lead to lowered lipid function and an impaired immune system.
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