![]() Sildenafil citrate structure
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Common Name | Sildenafil citrate | ||
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CAS Number | 171599-83-0 | Molecular Weight | 666.700 | |
Density | 1.447g/cm3 | Boiling Point | 672.4ºC at 760 mmHg | |
Molecular Formula | C28H38N6O11S | Melting Point | 187-189ºC | |
MSDS | Chinese USA | Flash Point | 360.5ºC | |
Symbol |
![]() GHS07 |
Signal Word | Warning |
Sensitive and precise HPLC method with back-extraction clean-up step for the determination of sildenafil in rat plasma and its application to a pharmacokinetic study.
Biomed. Chromatogr. 29 , 1559-66, (2015) A sensitive HPLC method was developed and validated for the determination of sildenafil concentrations in rat plasma (200 μL) using a liquid-liquid extraction procedure and paroxetine as an internal standard. In order to eliminate interferences and improve th... |
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A rapid method for determination of 22 selected drugs in human urine by UHPLC/MS/MS for clinical application.
J. AOAC Int. 97(6) , 1526-37, (2015) A rapid and sensitive ultra-HPLC/MSIMS (UHPLC/MSIMS) assay method for the simultaneous determination in human urine of 22 drugs belonging to different pharmaceutical groups was developed. The drugs were extracted from urine samples and then separated on a Zor... |
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Different compartmentation of responses to brain natriuretic peptide and C-type natriuretic peptide in failing rat ventricle.
J. Pharmacol. Exp. Ther. 350(3) , 681-90, (2014) We previously found a negative inotropic (NIR) and positive lusitropic response (LR) to C-type natriuretic peptide (CNP) in the failing heart ventricle. In this study, we investigated and compared the functional responses to the natriuretic peptides (NPs), br... |
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Reduced vascular responses to soluble guanylyl cyclase but increased sensitivity to sildenafil in female rats with type 2 diabetes.
Am. J. Physiol. Heart Circ. Physiol. 309 , H297-304, (2015) Impaired nitric oxide (NO), soluble guanylyl cyclase (sGC), and cyclic guanosine monophosphate (cGMP) signaling (NO-sGC-cGMP) has been implicated in the pathogenesis of diabetic vascular dysfunction. Efforts to directly target this signaling have led to the d... |
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Qualitative and quantitative analysis of PDE-5 inhibitors in counterfeit medicines and dietary supplements by HPLC-UV using sildenafil as a sole reference.
J. Pharm. Biomed. Anal. 98 , 327-33, (2014) Due to their popularity, medicinal products containing the phophodiesterase type 5 enzyme (PDE-5) inhibitors sildenafil, vardenafil and tadalafil are often subject to counterfeiting. In addition, illicit herbal dietary supplements adulterated with these subst... |
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Simultaneous quantification of sildenafil and N-desmethyl sildenafil in human plasma by UFLC coupled with ESI-MS/MS and pharmacokinetic and bioequivalence studies in Malay population.
Biomed. Chromatogr. 29 , 953-60, (2015) A simple, rapid, specific and reliable UFLC coupled with ESI-MSMS assay method to simultaneously quantify sildenafil and N-desmethyl sildenafil, with loperamide as internal standard, was developed. Chromatographic separation was performed on a Thermo Scientif... |
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Effects of Nigella sativa, Lepidium sativum and Trigonella foenum-graecum on sildenafil disposition in beagle dogs.
Eur. J. Drug Metab. Pharmacokinet. 40 , 219-24, (2015) The present study was conducted to investigate the effects of some commonly used herbs namely Nigella sativa, Lepidium sativum and Trigonella foenum-graecum on the pharmacokinetics of sildenafil in beagle dogs. The study design involved four treatments in a n... |
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Determination of phosphodiesterase-5 inhibitors and analogs using high-performance liquid chromatography with ultraviolet detection.
J. Chromatogr. Sci. 53(1) , 38-46, (2014) A considerable number of erectile dysfunction products, and dietary supplements suspected of containing phosphodiesterase-5 (PDE-5) inhibitors, have been analyzed by the US Food and Drug Administration. Often these samples are found to contain the approved ac... |
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Characterization of lung-delivered in-situ forming controlled release formulations.
J. Pharm. Pharmacol. 67 , 1349-54, (2015) This study investigated the controlled drug release potential of formulations revealing temperature-induced sol-gel transition following administration to the respiratory tract.Diverse sildenafil-containing aqueous poloxamer 407 preparations were evaluated fo... |
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Endothelial TLR4 activation impairs intestinal microcirculatory perfusion in necrotizing enterocolitis via eNOS-NO-nitrite signaling.
Proc. Natl. Acad. Sci. U. S. A. 110(23) , 9451-6, (2013) Necrotizing enterocolitis (NEC) is a devastating disease of premature infants characterized by severe intestinal necrosis and for which breast milk represents the most effective protective strategy. Previous studies have revealed a critical role for the lipop... |