4-Ethynylbenzenesulfonamide - ≥98%(HPLC) , CAS No.1788-08-5

CAS: 1788-08-5 Cat. No.: E140198 Formula: C8H7NO2S Molecular Weight: 181.21 EC Number: 808-112-9
AVAILABLE TO ORDER
GRADE & PURITY ≥98%(HPLC)
Synonyms
FS-3502 | UNII-3EQY8KZ2US | 4-ethynylbenzenesulfonamide | 4-ethynyl-benzenesulfonamide | 4-ethvnylbenzenesulfonamide | AKOS006308323 | J-515310 | MFCD11040256 | SY053233 | E1130 | 4-Ethynylbenzene-1-sulfonamide | OQPUCENNUFNCQO-UHFFFAOYSA-N | PD182165 | B
Storage
Room temperature
Shipped In
Normal
★
Size
Germany (EU)
USA*
Price
Qty
25mg
E140198-25mg
Made to order · 8–12 wks

€8.59

€12.93
Save €4.34 (33.56%)
50mg
E140198-50mg
—
1 In stock

€13.80

€20.74
Save €6.94 (33.47%)
100mg
E140198-100mg
Made to order · 8–12 wks

€24.21

€36.36
Save €12.15 (33.41%)
250mg
E140198-250mg
Made to order · 8–12 wks

€40.70

€61.52
Save €20.83 (33.85%)
1g
E140198-1g
Made to order · 8–12 wks

€162.18

€243.75
Save €81.57 (33.46%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥98%(HPLC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal 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.

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Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
FS-3502 | UNII-3EQY8KZ2US | 4-ethynylbenzenesulfonamide | 4-ethynyl-benzenesulfonamide | 4-ethvnylbenzenesulfonamide | AKOS006308323 | J-515310 | MFCD11040256 | SY053233 | E1130 | 4-Ethynylbenzene-1-sulfonamide | OQPUCENNUFNCQO-UHFFFAOYSA-N | PD182165 | B
Specifications & Purity
≥98%(HPLC)
Storage
Room temperature
Shipped In
Normal
Purity
≥98%(HPLC)
Names and Identifiers
Pubchem Sid528759972
Canonical SmilesC#CC1=CC=C(C=C1)S(=O)(=O)N
IUPAC Name4-ethynylbenzenesulfonamide
InChIKeyOQPUCENNUFNCQO-UHFFFAOYSA-N
INCHI1S/C8H7NO2S/c1-2-7-3-5-8(6-4-7)12(9,10)11/h1,3-6H,(H2,9,10,11)
Isomeric SMILES C#CC1=CC=C(C=C1)S(=O)(=O)N
Molecular Weight 181.21
Reaxy-Rn 2718374
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2718374&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  Organosulfonamides  Aminosulfonyl compounds  Acetylides  Organic oxides  Organic nitrogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzenesulfonamide - Benzenesulfonyl group - Organosulfonic acid amide - Aminosulfonyl compound - Sulfonyl - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Acetylide - Organic nitrogen compound - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organosulfur compound - Aromatic homomonocyclic 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)
CA2 Tclin Carbonic anhydrase 2 (2 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
CA12 Tclin Carbonic anhydrase 12 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
CA14 Tclin Carbonic anhydrase 14 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
CA9 Tclin Carbonic anhydrase 9 (2 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
CA2 Tclin Carbonic anhydrase II (17698 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA1 Tclin Carbonic anhydrase I (13240 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA14 Tclin Carbonic anhydrase XIV (1305 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA12 Tclin Carbonic anhydrase XII (6231 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA9 Tclin Carbonic anhydrase IX (8255 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
CA4 Carbonic anhydrase IV (1713 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.

1 results found

Lot NumberCertificate TypeDateItem
H2414115Certificate of AnalysisApr 11, 2024 E140198
Chemical and Physical Properties
x_melt_point_char178.0-182.0℃
Molecular Weight181.210 g/mol
XLogP30.700
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count2
Exact Mass181.02 Da
Monoisotopic Mass181.02 Da
Topological Polar Surface Area68.500 Ų
Heavy Atom Count12
Formal Charge0
Complexity285.000
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
Solution Calculators
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