≥97% 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.
Maximum Absorption Wavelength:298(CH2Cl2)nm
| Pubchem Sid | 504767845 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504767845 |
| Canonical Smiles | C#CC1=CN=C(C=C1)C#C |
| IUPAC Name | 2,5-diethynylpyridine |
| InChIKey | XTNNSWWCUMBUHY-UHFFFAOYSA-N |
| INCHI | 1S/C9H5N/c1-3-8-5-6-9(4-2)10-7-8/h1-2,5-7H |
| Isomeric SMILES | C#CC1=CN=C(C=C1)C#C |
| Molecular Weight | 127.15 |
| Reaxy-Rn | 8198583 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=8198583&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 |
|---|---|---|---|
 H2309042 | Certificate of Analysis | May 20, 2026 | D404161 |
| H2309049 | Certificate of Analysis | May 20, 2026 | D404161 |
| H2309050 | Certificate of Analysis | May 20, 2026 | D404161 |
| H2309052 | Certificate of Analysis | May 20, 2026 | D404161 |
| H2309053 | Certificate of Analysis | May 20, 2026 | D404161 |
| H2309059 | Certificate of Analysis | May 20, 2026 | D404161 |
| H2309062 | Certificate of Analysis | May 20, 2026 | D404161 |
| H2309066 | Certificate of Analysis | May 20, 2026 | D404161 |
| Sensitivity | Light Sensitive,Air Sensitive,Heat Sensitive |
|---|---|
| Melt Point(°C) | 90 °C |
| Molecular Weight | 127.140 g/mol |
| XLogP3 | 1.400 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 2 |
| Exact Mass | 127.042 Da |
| Monoisotopic Mass | 127.042 Da |
| Topological Polar Surface Area | 12.900 Ų |
| Heavy Atom Count | 10 |
| Formal Charge | 0 |
| Complexity | 199.000 |
| 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 |
