Determine the necessary mass, volume, or concentration for preparing a solution.
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Moligand™, ≥98% Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 6 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Sildenafil, one of the selective phosphodiesterase-5 (PDE5) inhibitors(IC50= 5.22 nM), is considered the best treatment for erectile dysfunction.
A type 5 cGMP phosphodiesterase (PDE5) inhibitor and vasodilator.
| Pubchem Sid | 504773248 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504773248 |
| Canonical Smiles | CCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCN(CC4)C)OCC)C |
| IUPAC Name | 5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-7-one |
| InChIKey | BNRNXUUZRGQAQC-UHFFFAOYSA-N |
| INCHI | 1S/C22H30N6O4S/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/h8-9,14H,5-7,10-13H2,1-4H3,(H,23,24,29) |
| Isomeric SMILES | CCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCN(CC4)C)OCC)C |
| PubChem CID | 135398744 |
| Molecular Weight | 474.58 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Benzenoids |
| Class | Benzene and substituted derivatives |
| Subclass | Benzenesulfonamides |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Benzenesulfonamides |
| Alternative Parents | Pyrazolopyrimidines Benzenesulfonyl compounds Phenoxy compounds Phenol ethers Pyrimidones Alkyl aryl ethers N-methylpiperazines Organosulfonamides Sulfonyls Pyrazoles Heteroaromatic compounds Trialkylamines Lactams Azacyclic compounds Hydrocarbon derivatives Organic oxides Organopnictogen compounds |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Benzenesulfonamide - Pyrazolopyrimidine - Benzenesulfonyl group - Phenoxy compound - Phenol ether - Alkyl aryl ether - Pyrimidone - N-methylpiperazine - N-alkylpiperazine - Piperazine - Pyrimidine - Organosulfonic acid amide - 1,4-diazinane - Pyrazole - Sulfonyl - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Azole - Heteroaromatic compound - Tertiary aliphatic amine - Tertiary amine - Lactam - Ether - Azacycle - Organoheterocyclic compound - Organooxygen compound - Organonitrogen compound - Hydrocarbon derivative - Organic nitrogen compound - Organic oxide - Organopnictogen compound - Organic oxygen compound - Organosulfur compound - Amine - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as benzenesulfonamides. These are organic compounds containing a sulfonamide group that is S-linked to a benzene ring. |
| External Descriptors | sulfonamide - piperazines - pyrazolopyrimidine |
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Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | Feb 28, 2026 | S125313 | |
| Certificate of Analysis | Dec 10, 2025 | S125313 | |
| Certificate of Analysis | Dec 10, 2025 | S125313 | |
| Certificate of Analysis | Dec 10, 2025 | S125313 | |
| Certificate of Analysis | Dec 10, 2025 | S125313 | |
| Certificate of Analysis | Sep 11, 2025 | S125313 | |
| Certificate of Analysis | Sep 04, 2025 | S125313 | |
| Certificate of Analysis | Sep 04, 2025 | S125313 | |
| Certificate of Analysis | Sep 04, 2025 | S125313 | |
| Certificate of Analysis | Nov 27, 2023 | S125313 |
| Solubility | Soluble in DMSO, methanol, and water (3.5 mg/mL). |
|---|---|
| Molecular Weight | 474.600 g/mol |
| XLogP3 | 1.500 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 8 |
| Rotatable Bond Count | 7 |
| Exact Mass | 474.205 Da |
| Monoisotopic Mass | 474.205 Da |
| Topological Polar Surface Area | 118.000 Ų |
| Heavy Atom Count | 33 |
| Formal Charge | 0 |
| Complexity | 838.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
| 1. Yang Yi-Ting, Yan Bin, Li Yu-Hua, Guo Li-Na, Wang Wei-Wei, Liu Li-Jie, Yu He-Guo, Diao Hua. (2023) Phosphodiesterase 10A inhibitor PF-2545920 as a prospective agent for the clinical promotion of sperm motility. ASIAN JOURNAL OF ANDROLOGY, [PMID:37026191] [10.4103/aja2022117] |
| 2. Kun Liu, Xiaohan Zhang, Xiongfeng Zhou, Xinming Huo, Xiaohao Wang, Kostya (Ken) Ostrikov. (2022) Experimental investigation of an atmospheric pressure plasma jet as an ion source for on-site mass-spectrometry analysis of nonvolatile solid samples: the integration effect of thermal desorption and ionization. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 55 (48): (485202). [PMID:] [10.1088/1361-6463/ac968a] |
| 3. Hao Gu, Kang Ma, Weiqian Zhao, Lirong Qiu, Wei Xu. (2021) A general purpose MALDI matrix for the analyses of small organic, peptide and protein molecules. ANALYST, 146 (12): (4080-4086). [PMID:34052846] [10.1039/D1AN00474C] |
| 4. Ting-Ting ZOU, Jin-Yi YANG, Zhen-Lin XU, Hong WANG, Yuan-Ming SUN, Hong-Tao LEI, Xue-Cai TAN, Yu-Dong SHEN. (2019) Detection of Tadalafil and Its Analogues in Health Wine and Oral Liquid by Microwell Lateral Flow Immunochromatography Assay. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY, [PMID:] [10.1016/S1872-2040(19)61182-5] |
| 5. Tian Wei, Yongyi Zhang, Jianxin Huang, Jinyi Yang, Yuanxin Tian, Yudong Shen. (2024) Rapid detection of multiple sildenafil and tadalafil adulterants in dietary supplements by dual-labeled probe time-resolved fluorescence immunochromatography assay. Food Bioscience, [PMID:] [10.1016/j.fbio.2024.103905] |
| 6. Yao Zhang, Hui Zhang, Ziyao Jia, Chunya Li, Lianqing Chen, Shiwei Jin. (2026) Ag/UiO-66-Decorated 3D-Printed Slippery Liquid-Infused Porous Surfaces for Ultrasensitive SERS Detection. ACS Applied Nano Materials, [PMID:] [10.1021/acsanm.6c00595] |
Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.
View Moligand™ grade guide →