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Molecular Weight: 474.58
Other names: Revatio, Viagra
Description: White or almost white slightly hygroscopic crystalline powder.
Solubility: Slightly soluble in water and in methanol, Practically insoluble in hexane.
Product introduction：
Product name: Sildenafil
Cas: 139755-83-2
MF: C22H30N6O4S
Molecular Weight: 474.58
Other names: Revatio, Viagra
Description: White or almost white slightly hygroscopic crystalline powder.
Solubility: Slightly soluble in water and in methanol, Practically insoluble in hexane.
Overview: sildenafil citrate powder CAS 139755-83-2 is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, sildenafil works by increasing blood flow to the penis to help a man get and keep an erection.
Specification
|
Product |
Sildenafil |
|
|
Batch No. |
201911001 |
|
|
Mfg. date |
20191113 |
|
|
Perform standard |
usp |
|
|
Item |
Standards |
Results |
|
Description |
White or almost white slightly hygroscopic crystalline powder. |
White crystalline powder |
|
Solubility |
Slightly soluble in water and in methanol, Practically insoluble in hexane. |
Conforms |
|
Identification |
The absorption maxima in the spectrum obtained with sample corresponds in position and relative intensity to those in the spectrum obtained with DIN-5-YL)-4-ETHOXYPHENYL)SULFONYL)-4-METHYL-,2-HYDROXY-1,2,3-PROPANETRICARBO USP CRS |
Conforms |
|
Limit of Imidazole by TLC |
Not more than 0.1% |
Conforms |
|
Residual Solvents by GC |
|
|
|
Methanol |
≤3000 ppm |
115ppm |
|
Methylnechloride |
≤600 ppm |
ND |
|
Ethyl acetatae |
≤ 5000 ppm |
ND |
|
Toluene |
≤890 ppm |
ND |
|
Acetone |
≤5000 ppm |
ND |
|
Related substances |
Related compound – A≤0.3% |
0.02% |
|
Any other unspecified individual impurity≤0.1% |
0.04% |
|
|
Total unspecified impurities≤0.3% |
0.09% |
|
|
Total impurities≤0.5% |
0.11% |
|
|
Water content by KF |
Not more than 2.50% |
0.87% |
|
Residue on ignition |
Not more than 0.10% |
0.07% |
|
Heavy metals |
Not more than 20 ppm |
Complies |
|
Assay by HPLC |
98.0% to 102.0% |
99.50% |
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