vzdevek: Femara
Čistost: 99%min
Registrska številka CAS: 112809-51-5
Molekulska formula: C17H11N5
Molekularna teža: 285.3
Ocena: Farmacevtski razred
Uporaba: pharmaceutical 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.
| TEST ITEMS |
SPECIFIKACIJA
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REZULTATI
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|
Description
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Bel kristalinični prah
|
Bel prah
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|
Identifikacija
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Positive
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Positive
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|
Esej(s HPLC)
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98.0~102,0 %
|
99.58%
|
|
Absorbance(E1cm)
|
465~495
|
486.5
|
|
Tališče
|
191~195ºC
|
192.5~195.0ºC
|
|
Loss On Drying
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0.5%maks
|
0.22%
|
|
Specifična rotacija
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+288º~ +298º
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+295.2C
|
|
Residue On Ignition
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0.1%maks
|
0.02%
|
|
Sorodne snovi
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Total:1.5%maks
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<1.2%
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|
|
Single:0.5%maks
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<0.6%
|
|
Residue Solvents
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0.2%maks
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0.1%
|
|
Težke kovine
|
20PPm max
|
<10PPm
|
