≥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 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 504769622 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504769622 |
| Canonical Smiles | C1=CC(=CN=C1)S(=O)(=O)[O-].[Na+] |
| IUPAC Name | sodium;pyridine-3-sulfonate |
| InChIKey | CQSNULMCHIOCCX-UHFFFAOYSA-M |
| INCHI | 1S/C5H5NO3S.Na/c7-10(8,9)5-2-1-3-6-4-5;/h1-4H,(H,7,8,9);/q;+1/p-1 |
| Isomeric SMILES | C1=CC(=CN=C1)S(=O)(=O)[O-].[Na+] |
| PubChem CID | 23677935 |
| Molecular Weight | 181.14 |
| Reaxy-Rn | 4038972 |
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 acids and derivatives |
| Class | Organic sulfonic acids and derivatives |
| Subclass | Organosulfonic acids and derivatives |
| Intermediate Tree Nodes | Arylsulfonic acids and derivatives - Arylsufonic acids |
| Direct Parent | 1-sulfo,2-unsubstituted aromatic compounds |
| Alternative Parents | Pyridines and derivatives Sulfonyls Organosulfonic acids Heteroaromatic compounds Azacyclic compounds Organonitrogen compounds Organic zwitterions Organic sodium salts Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteromonocyclic compounds |
| Substituents | 1-sulfo,2-unsubstituted aromatic compound - Pyridine - Organosulfonic acid - Sulfonyl - Heteroaromatic compound - Azacycle - Organic alkali metal salt - Organoheterocyclic compound - Organic sodium salt - Organic salt - Organic zwitterion - Organic oxygen compound - Organonitrogen compound - Organic nitrogen compound - Organosulfur compound - Hydrocarbon derivative - Organic oxide - Aromatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as 1-sulfo,2-unsubstituted aromatic compounds. These are an arylsulfonic acid carrying the sulfonic acid group at the 1-position, and no substitute at the 2-position of the aromatic ring. |
| 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 |
|---|---|---|---|
 C1819090 | Certificate of Analysis | Oct 14, 2025 | S161389 |
| Solubility | Soluble in water |
|---|---|
| Sensitivity | Hygroscopic |
| Molecular Weight | 181.150 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 1 |
| Exact Mass | 180.981 Da |
| Monoisotopic Mass | 180.981 Da |
| Topological Polar Surface Area | 78.500 Ų |
| Heavy Atom Count | 11 |
| Formal Charge | 0 |
| Complexity | 198.000 |
| 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 | 2 |
| 1. Tingting Xu, Jiming Li, Shaoyin Zhang, Yongcan Jin, Rui Wang. (2019) Integration of diagnosis and treatment in the detection and kill of S.aureus in the whole blood. BIOSENSORS & BIOELECTRONICS, [PMID:31323470] [10.1016/j.bios.2019.111507] |
