Sildenafil EP Impurity F CAS 139755-82-1

Purity >95.0%In StockPharmacopoeial Impurity Standards
CAS No.139755-82-1
Molecular FormulaC21H28N6O4S
Molecular Weight460.55 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Sildenafil EP Impurity F CAS 139755-82-1 chemical structure

Description

Sildenafil EP Impurity F (CAS 139755-82-1) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C21H28N6O4S. Molecular weight: 460.55 g/mol. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC21H28N6O4S
Molecular Weight460.55 g/mol
Purity>95.0%
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Nitrogen Atoms6
Sulfur Atoms1

Related Sildenafil Standards

Recommended Standards

Why CATO?