Alias: Femara
Renhet: 99%min
CAS-registreringsnummer: 112809-51-5
Molekylär formel: C17H11N5
Molekylvikt: 285.3
Kvalitet: Farmaceutisk kvalitet
Användande: 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 (ägglossning) 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.
| TESTFÖREMÅL |
SPECIFIKATION
|
RESULTAT
|
|
Beskrivning
|
Vitt kristallint pulver
|
Vitt pulver
|
|
Identifiering
|
Positiv
|
Positiv
|
|
Analysera(genom HPLC)
|
98.0~102.0%
|
99.58%
|
|
Absorbance(E1cm)
|
465~495
|
486.5
|
|
Smältpunkt
|
191~195ºC
|
192.5~195.0ºC
|
|
Förlust vid torkning
|
0.5%max
|
0.22%
|
|
Specifik rotation
|
+288º~ +298º
|
+295.2C
|
|
Rester vid antändning
|
0.1%max
|
0.02%
|
|
Relaterade substanser
|
Total:1.5%max
|
<1.2%
|
|
|
Single:0.5%max
|
<0.6%
|
|
Residue Solvents
|
0.2%max
|
0.1%
|
|
Heavy Metals
|
20PPm max
|
<10PPm
|
