Alias: Femara
Čistota: 99%min
Registračné číslo CAS: 112809-51-5
Molekulový vzorec: C17H11N5
Molekulová hmotnosť: 285.3
stupňa: Farmaceutická trieda
Použitie: farmaceutický materiál
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.
| TESTOVACIE POLOŽKY |
ŠPECIFIKÁCIA
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VÝSLEDKY
|
|
Popis
|
Biely kryštalický prášok
|
Biely prášok
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|
Identifikácia
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Pozitívny
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Pozitívny
|
|
Skúška(pomocou HPLC)
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98.0~102,0 %
|
99.58%
|
|
Absorbancia(E1 cm)
|
465~495
|
486.5
|
|
Bod topenia
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191~195ºC
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192.5~195.0ºC
|
|
Strata pri sušení
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0.5%max
|
0.22%
|
|
Špecifická rotácia
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+288º~ +298º
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+295.2C
|
|
Zvyšky pri zapálení
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0.1%max
|
0.02%
|
|
Súvisiace látky
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Celkom:1.5%max
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<1.2%
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|
|
Single:0.5%max
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<0.6%
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|
Reziduálne rozpúšťadlá
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0.2%max
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0.1%
|
|
Ťažké kovy
|
20PPm max
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<10PPm
|
