≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships 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 | 488187970 |
|---|---|
| Canonical Smiles | C1C=CC(=O)S1 |
| IUPAC Name | 2H-thiophen-5-one |
| InChIKey | NMSLUAZZTFUUFZ-UHFFFAOYSA-N |
| INCHI | 1S/C4H4OS/c5-4-2-1-3-6-4/h1-2H,3H2 |
| Isomeric SMILES | C1C=CC(=O)S1 |
| WGK Germany | 3 |
| Molecular Weight | 100.14 |
| Reaxy-Rn | 105244 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=105244&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 | Dihydrothiophenes |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Dihydrothiophenes |
| Alternative Parents | Carbothioic S-lactones Thioesters Carboxylic acids and derivatives Organic oxides Hydrocarbon derivatives Carbonyl compounds |
| Molecular Framework | Aliphatic heteromonocyclic compounds |
| Substituents | Carbothioic s-lactone - 2,5-dihydrothiophene - Thiocarboxylic acid ester - Thiocarboxylic acid or derivatives - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aliphatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as dihydrothiophenes. These are compounds containing a dihydrothiophene moiety, which is a thiophene derivative with only one double bond. |
| 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 |
|---|---|---|---|
 E2620057 | Certificate of Analysis | May 27, 2026 | H472400 |
| D2313076 | Certificate of Analysis | Jan 21, 2026 | H472400 |
| D2313088 | Certificate of Analysis | Jan 21, 2026 | H472400 |
| D2313090 | Certificate of Analysis | Jan 21, 2026 | H472400 |
| D2313142 | Certificate of Analysis | Jan 21, 2026 | H472400 |
| D2313143 | Certificate of Analysis | Jan 21, 2026 | H472400 |
| D2313174 | Certificate of Analysis | Jan 21, 2026 | H472400 |
| D2313178 | Certificate of Analysis | Jan 21, 2026 | H472400 |
| Refractive Index | 1.564 |
|---|---|
| Flash Point(°F) | 208.4 °F |
| Flash Point(°C) | 98 °C |
| Boil Point(°C) | 85-87 °C/10 mmHg (lit.) |
| Molecular Weight | 100.140 g/mol |
| XLogP3 | 0.800 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 99.9983 Da |
| Monoisotopic Mass | 99.9983 Da |
| Topological Polar Surface Area | 42.400 Ų |
| Heavy Atom Count | 6 |
| Formal Charge | 0 |
| Complexity | 95.700 |
| 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 |
