Псевдоним: Femara
Чистота: 99%мин
CAS регистрационен номер: 112809-51-5
Молекулна формула: C17H11N5
Молекулно тегло: 285.3
Степен: Фармацевтичен клас
Използване: фармацевтичен материал
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.
| TEST ITEMS |
СПЕЦИФИКАЦИЯ
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РЕЗУЛТАТИ
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Описание
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Бял кристален прах
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Бял прах
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Идентификация
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Положително
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Положително
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|
Анализ(чрез HPLC)
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98.0~102,0%
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99.58%
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|
Absorbance(E1cm)
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465~495
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486.5
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Точка на топене
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191~195ºC
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192.5~195.0ºC
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|
Загуба при сушене
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0.5%макс
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0.22%
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|
Специфична ротация
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+288º~ +298º
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+295.2ºC
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|
Остатък при запалване
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0.1%макс
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0.02%
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Сродни вещества
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Общо:1.5%макс
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<1.2%
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|
|
Неженен:0.5%макс
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<0.6%
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|
Residue Solvents
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0.2%макс
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0.1%
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Тежки метали
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20PPm макс
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<10ppm
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