Determine the necessary mass, volume, or concentration for preparing a solution.
≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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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.
| Canonical Smiles | C1=CC(=CC=C1[N+](=O)[O-])S(=O)(=O)O |
|---|---|
| IUPAC Name | 4-nitrobenzenesulfonic acid |
| InChIKey | SPXOTSHWBDUUMT-UHFFFAOYSA-N |
| INCHI | 1S/C6H5NO5S/c8-7(9)5-1-3-6(4-2-5)13(10,11)12/h1-4H,(H,10,11,12) |
| Isomeric SMILES | C1=CC(=CC=C1[N+](=O)[O-])S(=O)(=O)O |
| UN Number | 2305 |
| Molecular Weight | 203.17(anhydrous basis) |
| Beilstein | 11(3)134 |
| Reaxy-Rn | 2214219 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2214219&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
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View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Benzenoids |
| Class | Benzene and substituted derivatives |
| Subclass | Benzenesulfonic acids and derivatives |
| Intermediate Tree Nodes | Not available |
| Direct Parent | p-Nitrobenzenesulfonates |
| Alternative Parents | p-Bromobenzenesulfonates Nitrobenzenes Benzenesulfonyl compounds 1-sulfo,2-unsubstituted aromatic compounds Nitroaromatic compounds Sulfonyls Organosulfonic acids Propargyl-type 1,3-dipolar organic compounds Organic oxoazanium compounds Organopnictogen compounds Organonitrogen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic homomonocyclic compounds |
| Substituents | P-nitrobenzenesulfonate - P-bromobenzenesulfonate - Arylsulfonic acid or derivatives - Nitrobenzene - Benzenesulfonyl group - 1-sulfo,2-unsubstituted aromatic compound - Nitroaromatic compound - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Organosulfonic acid - Sulfonyl - C-nitro compound - Organic nitro compound - Allyl-type 1,3-dipolar organic compound - Propargyl-type 1,3-dipolar organic compound - Organic 1,3-dipolar compound - Organic oxoazanium - Organic nitrogen compound - Hydrocarbon derivative - Organosulfur compound - Organonitrogen compound - Organic oxide - Organopnictogen compound - Organic oxygen compound - Aromatic homomonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as p-nitrobenzenesulfonates. These are benzenesulfonic acids (or derivative thereof) carrying a nitro group at the para- position. |
| 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 07, 2026 | N102177 | |
| Certificate of Analysis | Apr 07, 2026 | N102177 | |
| Certificate of Analysis | Mar 29, 2025 | N102177 | |
| Certificate of Analysis | Mar 29, 2025 | N102177 | |
| Certificate of Analysis | Mar 29, 2025 | N102177 | |
| Certificate of Analysis | Oct 16, 2023 | N102177 | |
| Certificate of Analysis | Oct 16, 2023 | N102177 | |
| Certificate of Analysis | Nov 18, 2022 | N102177 | |
| Certificate of Analysis | Nov 18, 2022 | N102177 |
| Solubility | Soluble in water |
|---|---|
| Melt Point(°C) | 105-112°C |
| Molecular Weight | 203.170 g/mol |
| XLogP3 | 0.800 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 1 |
| Exact Mass | 202.989 Da |
| Monoisotopic Mass | 202.989 Da |
| Topological Polar Surface Area | 109.000 Ų |
| Heavy Atom Count | 13 |
| Formal Charge | 0 |
| Complexity | 279.000 |
| 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 |