≥98%(GC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal 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 | 488181910 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488181910 |
| Canonical Smiles | CC1=CC=[N+](C=C1)[O-] |
| IUPAC Name | 4-methyl-1-oxidopyridin-1-ium |
| InChIKey | IWYYIZOHWPCALJ-UHFFFAOYSA-N |
| INCHI | 1S/C6H7NO/c1-6-2-4-7(8)5-3-6/h2-5H,1H3 |
| Isomeric SMILES | CC1=CC=[N+](C=C1)[O-] |
| WGK Germany | 1 |
| RTECS | UT5800000 |
| Molecular Weight | 109.13 |
| Beilstein | 106329 |
| Reaxy-Rn | 106329 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=106329&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 | Methylpyridines |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Methylpyridines |
| Alternative Parents | Pyridinium derivatives Heteroaromatic compounds Azacyclic compounds Organopnictogen compounds Organonitrogen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteromonocyclic compounds |
| Substituents | Methylpyridine - Pyridinium - Heteroaromatic compound - Azacycle - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organonitrogen compound - Aromatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as methylpyridines. These are organic compounds containing a pyridine ring substituted at one or more positions by a methyl group. |
| External Descriptors | a small molecule |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 F2615033 | Certificate of Analysis | Jun 27, 2026 | M158852 |
| I1825060 | Certificate of Analysis | Apr 13, 2026 | M158852 |
| A2509228 | Certificate of Analysis | Apr 25, 2024 | M158852 |
| A2509229 | Certificate of Analysis | Apr 25, 2024 | M158852 |
| B2307267 | Certificate of Analysis | Feb 14, 2023 | M158852 |
| K2229223 | Certificate of Analysis | Dec 07, 2022 | M158852 |
| J2220068 | Certificate of Analysis | Oct 26, 2022 | M158852 |
| D2320164 | Certificate of Analysis | Jul 21, 2022 | M158852 |
| Sensitivity | Hygroscopic |
|---|---|
| Flash Point(°F) | 300.2 °F |
| Flash Point(°C) | 149 °C |
| Melt Point(°C) | 184 °C |
| Molecular Weight | 109.130 g/mol |
| XLogP3 | 0.200 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 109.053 Da |
| Monoisotopic Mass | 109.053 Da |
| Topological Polar Surface Area | 25.500 Ų |
| Heavy Atom Count | 8 |
| Formal Charge | 0 |
| Complexity | 66.900 |
| 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 |
