Finasteride
CAS No.: 98319-26-7
Product Name: Finasteride
CAS# 98319-26-7
Spec: USP
Package: 10kg/Aluminum can
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
CAS# 98319-26-7
Spec: USP
Package: 10kg/Aluminum can
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
Description
Spec of Finasteride :
| Items | Specification | Results |
| Appearance | White or almost white crystalline powder | Almost white crystalline powder |
| HPLC | The RT of the major peak complies with the RS | Conforms |
| IR | The IR spectrum of sample compiles with that of RS | Conforms |
| Solubility | Freely soluble in chloroform and in alcohol;very slightly soluble in water. | Conforms |
| Water | ≤0.3% | 0.06% |
| Specific optical rotation |
-56.0°~-60.0° | -58.8° |
| Residue on ignition | ≤0.1% | 0.07% |
| Heavy metal | ≤10ppm | Conforms |
| Maximum single impurity | ≤0.5% | 0.10% |
| Total impurities | ≤1.0% | 0.21% |
| Assay(By HPLC,%w/w) | 98.5%~101.0% | 99.5% |
| Ethyl acetate | ≤5000ppm | 69ppm |
| Chloroform | ≤60ppm | ND |
| Methanol | ≤3000ppm | 47ppm |
| Toluene | ≤890ppm | ND |
| Acetone | ≤5000ppm | ND |
