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Catalogue Number:D231235
Chemical Name:Demethylpiperazinyl Sildenafil Sulfonic Acid
Synonyms:3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxybenzenesulfonic Acid; Sildenafil EP Impurity D;
Impurity:Sildenafil EP Impurity D
CAS Number:1357931-55-5
Molecular Formula:C₁₇H₂₀N₄O₅S
Appearance:White to Light Brown Solid
Melting Point:>132°C (dec.)
Molecular Weight:392.43
Storage:4°C
Solubility:DMSO (Slightly), Methanol (Slightly, Sonicated), Water (Slightly)
Stability
Hygroscopic
Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;
Applications:Demethylpiperazinyl Sildenafil Sulfonic Acid (Sildenafil EP Impurity D) is an impurity of Sildenafil citrate (S435000).
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