Sildenafil EP Impurity A | CAS 1391053-95-4 - Request Quote

Sildenafil EP Impurity A is chemically 5-[2-Ethoxy-5-(4-methylpiperazine-1-sulfonyl)phenyl]-1-methyl-3-(2-methylpropyl)-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one,(as per EP) ; 1-{[3-(6,7-Dihydro-1-methyl-7-oxo-3-isobutyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl}-4-methylpiperazine (as per USP) . It is also known as Sildenafil USP Related Compound A ; Sildenafil Isobutyl Analog. Sildenafil EP Impurity A is supplied with detailed characterization data compliant with regulatory guideline. Sildenafil EP Impurity A can be used for the analytical method development, method validation (AMV), Quality Controlled (QC) application for Abbreviated New Drug Application (ANDA) or during commercial production of Sildenafil .

The product can be used as reference standards and further traceability against pharmacopeial standards (USP or EP) can be provided based on feasibility. SynZeal products are for analytical purpose only and not for human use.