包装
| 包装: 1kg/bag; 5kg/tin; 25kg/drum |
仕様
レトロゾール99％1.casno: 112809-51-52.品質: usp323.文書: gmp4.使用: 抗腫瘍剤
5.Basic information about Letrozole 99% CAS:112809-51-5:
Product Name: Letrozole
Synonyms: 4,4'-(1H-1,2,4-TRIAZOL-1-YLMETHYLENE) BIS-BENZONITRILE;FEMARA;CGS-20267;LETROZOL;LETROZOLE;LetrozoleUsp28;Letrozole99%;CGS-20267, Femara
CAS NO: 112809-51-5
Molecular Formula: C17H11N5
Molecular Weight: 285.3
Appearance: White to yellowish,crystalline powder
Assay: 98.0%-102.0%
Usage: A nonsteroidal aromatase inhibitor structurally related to Fadrozole. Antineoplastic
6.COA of Letrozole 99% CAS:112809-51-5:
Items | Specification | |
Appearance | White to yellowish, crystalline powder | |
Identification | A.IR spectrum of sample should be identical to that of Reference Standard; | |
The retention time of major peak in the chromatogram of the Assay preparation should correspond to that in the chromatogram of Standard preparation, as obtained in the Assay. | ||
Showing the white precipitate reaction. | ||
Water | Not more than 0.3% | |
Residue on Ignition | Not more than 0.1% | |
Heavy metals | Not more than 0.001% | |
Related Compounds | Compound A: Not more than 0.1% | |
4,4’,4”-methylidenetrisbenzonitrile: Not more than 0.2% | ||
Any other impurity: Not more than 0.1% | ||
All other impurities: Not more than 0.3% | ||
Residual Sovents | Ethanol: Not more than 3000ppm | |
Ethyl acetate: Not more than 2000ppm | ||
DMF: Not more than 880ppm | ||
Microbe Limit | Bacteria: Not more than 200/g | |
Mold and yeast: Not more than 50/g | ||
Escherichia coli: should be absent | ||
Assay(anhydrous) | 98.0% to 102.0% of Cl7H11N5 on dried basis | |
Packaging and Storage | Preserve in tight containers at controlled room temperature. | |
Conclusion | Conforms to the USP32. | |
7.Sinoway's advantages:
(1)ISO 9001:2008 certificated company
(2)27 years in pharmaceutical industry
(3)Good quality,competitive price and professional service
(4)China office of Fischer Chemicals AG (Switzerland)
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