average Mw ~(162.21)n for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C Ships Wet ice 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 24 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 504763198 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504763198 |
| Canonical Smiles | C=COS(=O)(=O)[O-].[K+] |
| IUPAC Name | potassium;ethenyl sulfate |
| InChIKey | WZAPMUSQALINQD-UHFFFAOYSA-M |
| INCHI | 1S/C2H4O4S.K/c1-2-6-7(3,4)5;/h2H,1H2,(H,3,4,5);/q;+1/p-1 |
| Isomeric SMILES | C=COS(=O)(=O)[O-].[K+] |
| WGK Germany | 3 |
| Alternate CAS | 26182-60-5 |
| Reaxy-Rn | 35673502 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=35673502&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 acids and derivatives |
| Class | Organic sulfuric acids and derivatives |
| Subclass | Sulfuric acid esters |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Sulfuric acid monoesters |
| Alternative Parents | Organooxygen compounds Organic potassium salts Organic oxides Hydrocarbon derivatives Organic cations |
| Molecular Framework | Aliphatic acyclic compounds |
| Substituents | Sulfate-ester - Sulfuric acid monoester - Organic alkali metal salt - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organic potassium salt - Organic salt - Organooxygen compound - Organic cation - Aliphatic acyclic compound |
| Description | This compound belongs to the class of organic compounds known as sulfuric acid monoesters. These are organic compounds containing the sulfuric acid monoester functional group, with the generic structure ROS(O)(=O)=O, (R=organyl 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 |
|---|---|---|---|
 D2620482 | Certificate of Analysis | Apr 11, 2026 | P111209 |
| D2620483 | Certificate of Analysis | Apr 11, 2026 | P111209 |
| D2620484 | Certificate of Analysis | Apr 11, 2026 | P111209 |
| G2303058 | Certificate of Analysis | Apr 08, 2025 | P111209 |
| G2303066 | Certificate of Analysis | Apr 08, 2025 | P111209 |
| G2303067 | Certificate of Analysis | Apr 08, 2025 | P111209 |
| G2303069 | Certificate of Analysis | Apr 08, 2025 | P111209 |
| G2303123 | Certificate of Analysis | Apr 08, 2025 | P111209 |
| B2524252 | Certificate of Analysis | Feb 07, 2025 | P111209 |
| B2524253 | Certificate of Analysis | Feb 07, 2025 | P111209 |
| D2422175 | Certificate of Analysis | Apr 13, 2024 | P111209 |
| D2422298 | Certificate of Analysis | Apr 13, 2024 | P111209 |
| G2303170 | Certificate of Analysis | Jun 26, 2023 | P111209 |
| B2218384 | Certificate of Analysis | Jan 19, 2022 | P111209 |
| B2218425 | Certificate of Analysis | Jan 19, 2022 | P111209 |
| B2218454 | Certificate of Analysis | Jan 19, 2022 | P111209 |
| Sensitivity | Moisture sensitive |
|---|---|
| Molecular Weight | 162.210 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 2 |
| Exact Mass | 161.939 Da |
| Monoisotopic Mass | 161.939 Da |
| Topological Polar Surface Area | 74.800 Ų |
| Heavy Atom Count | 8 |
| Formal Charge | 0 |
| Complexity | 142.000 |
| 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 |
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