N-Desmethyl Sildenafil - ≥99% , CAS No.139755-82-1

CAS: 139755-82-1 Cat. No.: N352320 Molecular Weight: 460.55 EC Number: 641-939-1
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
BCP34330 | D70714 | MFCD00908398 | UK-103320 | FT-0666208 | AKOS027322024 | SCHEMBL19518061 | 5-[2-Ethoxy-5-(piperazine-1-sulfonyl)-phenyl]-1-methyl-3-propyl-1,6-dihydro-pyrazolo[4,3-d]pyrimidin-7-one | J-007308 | Q27282788 | HY-117605 | BDBM50287543 | 5-
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
50mg
N352320-50mg
2
$27.90
250mg
N352320-250mg
1
$79.90
1g
N352320-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$199.90
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Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

N-Desmethyl Sildenafil is a metabolite of Sildenafil . Sildenafil is a selective inhibitor of the type 5 cGMP phosphodiesterase (PDE5 inhibitor) which catalyzes the hydrolysis of 3',5'-cyclic guanosine monophosphate (cGMP). As a PDE5 inhibitor, Sildenafil has been reported to enhance neuro-, synapto- and angiogenesis in rat models of stroke and also is reported to be a mild vasodilator. Sildenafil has also been shown to prevent indomethacin-induced small intestinal ulceration formation through an NO/cGMP- dependent mechanism.

Specifications

Synonyms
BCP34330 | D70714 | MFCD00908398 | UK-103320 | FT-0666208 | AKOS027322024 | SCHEMBL19518061 | 5-[2-Ethoxy-5-(piperazine-1-sulfonyl)-phenyl]-1-methyl-3-propyl-1, 6-dihydro-pyrazolo[4, 3-d]pyrimidin-7-one | J-007308 | Q27282788 | HY-117605 | BDBM50287543 | 5-
Specifications & Purity
≥99%
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
INHIBITOR
Purity
≥99%
Product Properties
pKapKa: 10.05 (Predicted), pKa: 7.75 (Predicted)
Names and Identifiers
Canonical SmilesCCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCNCC4)OCC)C
IUPAC Name5-(2-ethoxy-5-piperazin-1-ylsulfonylphenyl)-1-methyl-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-7-one
InChIKeyUZTKBZXHEOVDRL-UHFFFAOYSA-N
INCHI1S/C21H28N6O4S/c1-4-6-16-18-19(26(3)25-16)21(28)24-20(23-18)15-13-14(7-8-17(15)31-5-2)32(29,30)27-11-9-22-10-12-27/h7-8,13,22H,4-6,9-12H2,1-3H3,(H,23,24,28)
Isomeric SMILES CCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCNCC4)OCC)C
Molecular Weight 460.55
Reaxy-Rn 7672894
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=7672894&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzenesulfonamides
Intermediate Tree Nodes Not available
Direct ParentBenzenesulfonamides
Alternative Parents Benzenesulfonyl compounds  Pyrazolopyrimidines  Phenoxy compounds  Phenol ethers  Alkyl aryl ethers  Pyrimidones  Organosulfonamides  Piperazines  Vinylogous amides  Sulfonyls  Heteroaromatic compounds  Pyrazoles  Azacyclic compounds  Dialkylamines  Hydrocarbon derivatives  Organic oxides  Organopnictogen compounds  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Benzenesulfonamide - Pyrazolopyrimidine - Benzenesulfonyl group - Phenoxy compound - Phenol ether - Alkyl aryl ether - Pyrimidone - Pyrimidine - 1,4-diazinane - Organosulfonic acid amide - Piperazine - Sulfonyl - Azole - Organosulfonic acid or derivatives - Vinylogous amide - Pyrazole - Organic sulfonic acid or derivatives - Heteroaromatic compound - Secondary aliphatic amine - Ether - Azacycle - Organoheterocyclic compound - Secondary amine - Organooxygen compound - Organonitrogen compound - Amine - Organic oxide - Organic nitrogen compound - Organosulfur compound - Hydrocarbon derivative - Organic oxygen compound - Organopnictogen compound - Aromatic heteropolycyclic compound
DescriptionThis 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 Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
PDE5A Tclin cGMP-specific 3',5'-cyclic phosphodiesterase (2 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
PDE5A Tclin Phosphodiesterase 5A (5113 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PDE3A Tclin Phosphodiesterase 3 (1749 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PDE1A Tclin Phosphodiesterase 1 (671 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
rep Replicase polyprotein 1ab (378 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot NumberCertificate TypeDateItem
G2416566Certificate of AnalysisMar 30, 2024 N352320
G2416577Certificate of AnalysisMar 30, 2024 N352320
G2416578Certificate of AnalysisMar 30, 2024 N352320
Chemical and Physical Properties
SolubilitySoluble in methanol, chloroform, and dichloromethane.
Refractive Indexn20D1.68
Boil Point(°C)685.7° C at 760 mmHg
Melt Point(°C)158-160° C
Molecular Weight460.600 g/mol
XLogP31.000
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count8
Rotatable Bond Count7
Exact Mass460.189 Da
Monoisotopic Mass460.189 Da
Topological Polar Surface Area126.000 Ų
Heavy Atom Count32
Formal Charge0
Complexity810.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
References
1. 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]
Solution Calculators
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