1612561

Sildenafil citrate

United States Pharmacopeia (USP) Reference Standard

• Synonym(s): Sildenafil citrate salt, 1-[[3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine citrate salt, 5-[2-Ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[5,4-e]pyrimidin-7-one citrate salt, Revatio, UK-92,480
• Empirical Formula (Hill Notation): C₂₂H₃₀N₆O₄S ·C₆H₈O₇
• CAS Number: 171599-83-0
• Molecular Weight: 666.70
• NACRES: NA.24
• PubChem Substance ID: 329751094
• UNSPSC Code: 41116107
• MDL number: MFCD09026931

Properties

• grade: pharmaceutical primary standard
• agency: USP
• API family: sildenafil
• manufacturer/tradename: USP
• application(s): pharmaceutical; pharmaceutical (small molecule)
• format: neat
• storage temp.: 2-8°C
• SMILES string: OC(=O)CC(O)(CC(O)=O)C(O)=O.CCCc1nn(C)c2C(=O)NC(=Nc12)c3cc(ccc3OCC)S(=O)(=O)N4CCN(C)CC4
• InChI: 1S/C22H30N6O4S.C6H8O7/c1-5-7-17-19-20(27(4)25-17)22(29)24-21(23-19)16-14-15(8-9-18(16)32-6-2)33(30,31)28-12-10-26(3)11-13-28;7-3(8)1-6(13,5(11)12)2-4(9)10/h8-9,14H,5-7,10-13H2,1-4H3,(H,23,24,29);13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
• InChI key: DEIYFTQMQPDXOT-UHFFFAOYSA-N
• Gene Information: human ... PDE5A(8654)

Description

General description

Find answers to frequently asked questions on USP products in USP FAQs.

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Sildenafil citrate USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:

• Sildenafil Compounded Oral Suspension
• Sildenafil Injection
• Sildenafil Tablets

Biochem/physiol Actions

Sildenafil is a potent, selective inhibitor of cGMP specific phosphodiesterase type 5 (PDE5). Sildenafil is used to treat erectile dysfunction and pulmonary arterial hypertension. NO activates guanylate cyclase, which results in increased levels of cGMP, producing smooth muscle relaxation. Sildenafil enhances the effect of NO by inhibiting PDE5, which is responsible for degradation of cGMP.

Sildenafil is a potent, selective inhibitor of cGMP specific phosphodiesterase type 5 (PDE5). Sildenafil is used to treat erectile dysfunction and pulmonary hypertension.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Codes: H315,H319,H335
• Precautionary Statements: P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable