Alias: Femara
Renhet: 99%min
CAS-registernummer: 112809-51-5
Molekylær formel: C17H11N5
Molekylær vekt: 285.3
Karakter: Farmasøytisk karakter
Bruk: 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 ARTIKLER |
SPESIFIKASJON
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RESULTATER
|
|
Beskrivelse
|
Hvitt krystallinsk pulver
|
Hvitt pulver
|
|
Identifikasjon
|
Positivt
|
Positivt
|
|
Assay(ved HPLC)
|
98.0~102,0 %
|
99.58%
|
|
Absorbans(E1 cm)
|
465~495
|
486.5
|
|
Smeltepunkt
|
191~195ºC
|
192.5~195.0ºC
|
|
Tap ved tørking
|
0.5%maks
|
0.22%
|
|
Spesifikk rotasjon
|
+288º~ +298º
|
+295.2C
|
|
Rester ved antennelse
|
0.1%maks
|
0.02%
|
|
Relaterte substanser
|
Total:1.5%maks
|
<1.2%
|
|
|
Enkelt:0.5%maks
|
<0.6%
|
|
Rester av løsemidler
|
0.2%maks
|
0.1%
|
|
Tungmetaller
|
20PPm maks
|
<10PPm
|
