Tadalafil
CAS No.: 171596-29-5
Product Name: Tadalafil
CAS#171596-29-5
Package: 25kg/drum
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
CAS#171596-29-5
Package: 25kg/drum
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
Description
Spec of Tadalafil :
| Items | Specification | Results |
| Appearance | white or almost white powder. | White powder |
| Solubility | Freely soluble in dimethyl sulfoxide,slightly soluble in dichloromethane,practically insoluble in water. | Freely soluble in dimethyl sulfoxide,slightly soluble in dichloromethane,practically insoluble in water. |
| Infrared Absorption | The infrared absorption spectrum of the sample shall be consistent with that of the reference substance. | Complies |
| HPLC | The retention time of the major peak of the Sample solution corresponds to that of the Identification solution, as obtained in the test for Enantiomeric and Diastere-omeric Purity. | Complies |
| Organic impurities | Individual impurities not more than 0.1% | 0.0081% |
| Total impurities not more than 0.3% | 0.019% | |
| Enantiomeric | 6R,12aS diastereomer not more than 0.1% | Not detected |
| 6S,12aS enantiomer not more than 0.1% | Not detected | |
| Residual solven | Methylamine not more than0.163% | Not detected |
| Methanol not more than 0.3% | 0.013% | |
| Acetonitrile not more than 0.041% | Not detected | |
| Isopropanol not more than 0.5% | Not detected | |
| Ethyl acetate not more than 0.5% | Not detected | |
| Triethylamine not more than 0.032% | Not detected | |
| DMF not more than 0.088% | Not detected | |
| Residue on ignition | Not more than 0.1% | 0.055% |
| Loss on drying | Not more than0.5% | 0.025% |
| Assay | NLT 97.5% and NMT 102.5% ,calculated on the dried basis | 99.99% |
