≥97% 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 | 504755754 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504755754 |
| Canonical Smiles | C1=C[N+](=C(C=C1[N+](=O)[O-])Cl)[O-] |
| IUPAC Name | 2-chloro-4-nitro-1-oxidopyridin-1-ium |
| InChIKey | YSTCMHHKDOVZDA-UHFFFAOYSA-N |
| INCHI | 1S/C5H3ClN2O3/c6-5-3-4(8(10)11)1-2-7(5)9/h1-3H |
| Isomeric SMILES | C1=C[N+](=C(C=C1[N+](=O)[O-])Cl)[O-] |
| WGK Germany | 3 |
| Molecular Weight | 174.54 |
| Beilstein | 145697 |
| Reaxy-Rn | 145697 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=145697&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 | Organic 1,3-dipolar compounds |
| Class | Allyl-type 1,3-dipolar organic compounds |
| Subclass | Organic nitro compounds |
| Intermediate Tree Nodes | C-nitro compounds |
| Direct Parent | Nitroaromatic compounds |
| Alternative Parents | 2-halopyridines Pyridinium derivatives Aryl chlorides Heteroaromatic compounds Propargyl-type 1,3-dipolar organic compounds Organic oxoazanium compounds Azacyclic compounds Organopnictogen compounds Organonitrogen compounds Organochlorides Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteromonocyclic compounds |
| Substituents | Nitroaromatic compound - 2-halopyridine - Aryl chloride - Aryl halide - Pyridine - Pyridinium - Heteroaromatic compound - Organic oxoazanium - Propargyl-type 1,3-dipolar organic compound - Organoheterocyclic compound - Azacycle - Organic oxide - Organopnictogen compound - Organonitrogen compound - Organochloride - Organic nitrogen compound - Organic oxygen compound - Organohalogen compound - Hydrocarbon derivative - Aromatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as nitroaromatic compounds. These are c-nitro compounds where the nitro group is C-substituted with an aromatic group. |
| 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 |
|---|---|---|---|
 C1812135 | Certificate of Analysis | Oct 17, 2025 | C123451 |
| C1812133 | Certificate of Analysis | Oct 14, 2025 | C123451 |
| F1623023 | Certificate of Analysis | Feb 18, 2024 | C123451 |
| C2328033 | Certificate of Analysis | Apr 06, 2023 | C123451 |
| C2328034 | Certificate of Analysis | Mar 31, 2023 | C123451 |
| Sensitivity | Hygroscopic |
|---|---|
| Melt Point(°C) | 152-155°C |
| Molecular Weight | 174.540 g/mol |
| XLogP3 | 0.600 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 0 |
| Exact Mass | 173.983 Da |
| Monoisotopic Mass | 173.983 Da |
| Topological Polar Surface Area | 71.300 Ų |
| Heavy Atom Count | 11 |
| Formal Charge | 0 |
| Complexity | 160.000 |
| 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 |
