Alias: Femara
Reinheit: 99%min
CAS-Registrierungsnummer: 112809-51-5
Molekulare Formel: C17H11N5
Molekulargewicht: 285.3
Grad: Pharmazeutische Qualität
Verwendung: Pharmazeutisches Material
Femara, sold under the brand name Femara, is a prescription drug used to treat breast cancer in its advanced stages, and in women who have finished menopause. Doctors may use Femara off-label in fertility treatments to help encourage egg release (Ovulation) in women. Femara belongs to a class of cancer drugs known as aromatase inhibitors, which work by preventing the body from converting a hormone called androgen into estrogen.
Letrozole is a type II (non-steroidal) third generation aromatase inhibitor. Clinically it is used to treat postmenopausal women with either estrogen receptor positive or estrogen receptor unknown breast cancer.
For pre-contest bodybuilders, Letrozole is almost a necessity to eliminate water retention and achieve the ripped look necessary to compete in today’s bodybuilding world.
| TESTARTIKEL |
SPEZIFIKATION
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ERGEBNISSE
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Beschreibung
|
Weißes kristallines Pulver
|
Weißes Pulver
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|
Identifikation
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Positiv
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Positiv
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|
Test(durch HPLC)
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98.0~102,0 %
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99.58%
|
|
Absorbance(E1cm)
|
465~495
|
486.5
|
|
Schmelzpunkt
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191~195ºC
|
192.5~195.0ºC
|
|
Verlust beim Trocknen
|
0.5%max
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0.22%
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|
Spezifische Rotation
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+288º~ +298º
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+295.2°C
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Rückstände bei der Zündung
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0.1%max
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0.02%
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|
Verwandte Substanzen
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Total:1.5%max
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<1.2%
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|
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Single:0.5%max
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<0.6%
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|
Residue Solvents
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0.2%max
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0.1%
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Schwermetalle
|
20PPm max
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<10PPm
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