Determine the necessary mass, volume, or concentration for preparing a solution.
≥98%(GC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at -20°C,Argon charged 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 504759721 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504759721 |
| Canonical Smiles | C#CC1=CC=NC=C1 |
| IUPAC Name | 4-ethynylpyridine |
| InChIKey | FDEDJRHULYIJOR-UHFFFAOYSA-N |
| INCHI | 1S/C7H5N/c1-2-7-3-5-8-6-4-7/h1,3-6H |
| Isomeric SMILES | C#CC1=CC=NC=C1 |
| Molecular Weight | 103.12 |
| Beilstein | 20(5)7,3 |
| Reaxy-Rn | 1280656 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1280656&ln= |
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 | Organoheterocyclic compounds |
| Class | Pyridines and derivatives |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Pyridines and derivatives |
| Alternative Parents | Heteroaromatic compounds Azacyclic compounds Acetylides Organopnictogen compounds Organonitrogen compounds Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteromonocyclic compounds |
| Substituents | Pyridine - Heteroaromatic compound - Acetylide - Azacycle - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organonitrogen compound - Aromatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as pyridines and derivatives. These are compounds containing a pyridine ring, which is a six-member aromatic heterocycle which consists of one nitrogen atom and five carbon atoms. |
| External Descriptors | Not available |
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 | Apr 02, 2026 | E156047 | |
| Certificate of Analysis | Apr 02, 2026 | E156047 | |
| Certificate of Analysis | Apr 02, 2026 | E156047 | |
| Certificate of Analysis | Apr 02, 2026 | E156047 | |
| Certificate of Analysis | Apr 02, 2026 | E156047 | |
| Certificate of Analysis | Mar 11, 2026 | E156047 | |
| Certificate of Analysis | Mar 11, 2026 | E156047 | |
| Certificate of Analysis | Mar 11, 2026 | E156047 | |
| Certificate of Analysis | Mar 11, 2026 | E156047 | |
| Certificate of Analysis | Sep 05, 2025 | E156047 | |
| Certificate of Analysis | Sep 05, 2025 | E156047 | |
| Certificate of Analysis | Jun 07, 2024 | E156047 | |
| Certificate of Analysis | Jun 07, 2024 | E156047 | |
| Certificate of Analysis | Jun 07, 2024 | E156047 | |
| Certificate of Analysis | Mar 12, 2024 | E156047 | |
| Certificate of Analysis | Aug 21, 2023 | E156047 | |
| Certificate of Analysis | Aug 21, 2023 | E156047 | |
| Certificate of Analysis | Jan 11, 2023 | E156047 | |
| Certificate of Analysis | Jun 20, 2022 | E156047 | |
| Certificate of Analysis | Jun 20, 2022 | E156047 | |
| Certificate of Analysis | Jun 20, 2022 | E156047 | |
| Certificate of Analysis | Jun 20, 2022 | E156047 | |
| Certificate of Analysis | Jun 20, 2022 | E156047 |
| Sensitivity | Air Sensitive,Heat Sensitive |
|---|---|
| Melt Point(°C) | 98 °C |
| Molecular Weight | 103.120 g/mol |
| XLogP3 | 1.100 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 1 |
| Exact Mass | 103.042 Da |
| Monoisotopic Mass | 103.042 Da |
| Topological Polar Surface Area | 12.900 Ų |
| Heavy Atom Count | 8 |
| Formal Charge | 0 |
| Complexity | 103.000 |
| 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 |