CAS No: 120511-73-1
Molecular formula: 120511-73-1
Molecular weight: 293.37
Appearance: White powder.
Assay: 99%
Quality standard: USP 32
Anastrozole is the generic name for the trade name drug Arimidex. In some cases, health care professionals may use the trade name Arimidex when referring to the generic drug name Anastrozole. It is an aromatase inhibitor, an anti-cancer medication use for the adjuvant or initial treatment of breast cancer in post-menopausal women. Estrogen causes or increases growth of certain breast cancers. Anastrozole works by blocking aromatase enzyme, which is involved in estrogen production in the body. This leads to decreased tumor size or delayed progression of tumor growth in some women. The FDA approved brand name anastrozole (Arimidex) in 1995.
Anastrozole will begin taking it the day they start their cycle, Anastrozole will run it throughout the duration of steroid administration. Anastrozole is also important to point out GP Anastrozole’s ability to increase testosterone in the body. Some studies have shown that natural testosterone levels have increases as much as 60% after the use of this substance for 7 days. Because of this, bodybuilders find Anastrozole extremely effective during PCT where as they are trying to elevate natural levels as much as possible in order to avoid a post cycle "crash".
Anastrozole is sometimes used to treat male breast cancer, but has not been well studied in men.Alrimidex is being studied for sterile men to balance testosterone levels and maintain healthy sperm counts. Some male athletes and bodybuilders taking anabolic steroids to build muscle also take Arimidex to reduce estrogen production, which is the side effect of steroid use.
Items |
Standard |
Results |
Description |
White crystalline powder |
Complies |
Identification |
IR
HPLC
Reactive |
Conform with standard IR
Conform with standard HPLC
Conform |
Solubility |
Freely soluble in methanol,acetone,ethanol and tetrahydrofuran.And very soluble in acetonitrile |
Complies |
Total Impurity |
max.0.5% |
0.18% |
Total Unspecified Impurity |
max. 0.2% |
0.08% |
Individual unspecified impurlty |
max. 0.1% |
0.05% |
Related compound B |
max. 0.2% |
0.07% |
Related compound C |
max. 0.2% |
0.04% |
Related compound D |
max. 0.1% |
0.05% |
Related compound E |
max. 0.1% |
0.06% |
Limit of cyclohexane |
max. 0.08% |
ND |
Limit of ethylacetate |
max. 0.1% |
0.07% |
Melting point |
81.0~84.0℃ |
82.5~83.2℃ |
Water |
max. 0.3% |
0.21% |
Residue on ignition |
max. 0.1% |
0.07% |
Heavy Metals |
max.0.001% |
Complies |
Assay(HPLC) |
98.0%~102.0% |
99.8% |
Storage |
Cool and dry |
Conclusion |
It complies to USP32 . |