Letrozole
CAS: 112809-51-5
MF: C17H11N5
MW: 285.3
Synonyms: LetrozoleUsp28; Letrozole99 feem pua ;CGS-20267, Femara;LETRAZOLE;letrozolex;Lelrozol;1-[BIS(4-CYANOPHENYL)METHYL]-1,2,{7 }}TRIAZOLE;4,4'-(1H-1,2,4-Triazol-1-}ylmethylene)dibenzonitrile
Kev piav qhia
Letrozol yog ib qho tshuaj tiv thaiv estrogen ntawm tsev neeg Aromatase Inhibitor thiab yog ib qho ntawm cov muaj zog tshaj plaws thiab muaj txiaj ntsig zoo ntawm txhua tus AI's. ib qho tshuaj uas tsis yog steroidal. Letrozol kho hormonally teb mob qog noj ntshav tom qab phais hauv cov poj niam dhau los lawm. Nws belongs rau cov chav kawm ntawm cov tshuaj hu ua Aromatase inhibitors thiab Hormones antineoplastics.Nws ua los ntawm kev txo qis cov tshuaj estrogen synthesized hauv lub cev.Thiab nws yog ib qho ntawm feem ntau siv tshuaj tiv thaiv estrogens ntawm cov neeg siv steroid thaum siv steroid los tiv thaiv tau estrogenic. muaj feem cuam tshuam. Nws muaj txiaj ntsig zoo li cov tshuaj tiv thaiv estrogen hauv qhov no hais txog ntau cov tshuaj anabolic steroids tau zoo thim rov qab cov tsos mob gynecomastia nrog Letrozol.
COA
| Kev sim | Specifications | Cov txiaj ntsig |
| Qhov tshwm sim | Dawb los yog dawb crystaline hmoov | Dawb Crystalline hmoov |
| Solubility | Soluble hauv ethanol thaum rhuab |
Ua raws |
| ldentification | (1) Qhov siab tshaj plaws nyob rau hauv wavelength ntawm 240 nm Yam tsawg kawg nkaus nqus nyob rau hauv wavelength ntawm 215 nm |
Ua raws Ua raws |
| (2) Infrared spectrum yuav tsum ua raws li qhov tseem ceeb ntawm qhov sib txawv | Raws li qhov tseem ceeb ntawm qhov sib txawv | |
| Cov ntsiab lus melting | 182ºC-184ºC | 182ºC |
| Cov khoom muaj feem xyuam | Tsawg dua lossis sib npaug rau 0.5 feem pua | 0.3 feem pua |
| Ib leeg impurity | Tsawg dua lossis sib npaug rau 0.3 feem pua | 0.2 feem pua |
| Poob rau ziab | Tsawg dua lossis sib npaug rau 1.0 feem pua | 0.8 feem pua |
| [Assay]C17H11N5 (Nyob rau hauv anhydrous) |
Ntau dua lossis sib npaug rau 98.0 feem pua | 99.2% ua |
| Xaus | Conforms Specifications ntawm Enterprise Standard. | |
Txhua yam kev xav tau, thov hu rau kuv
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