Determine the necessary mass, volume, or concentration for preparing a solution.
| Activity Type | Relation | Activity value | Units | Action Type | Journal | PubMed Id | doi | Assay Aladdin ID |
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≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C,Argon charged Ships Wet ice,FedEx DG Service 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 33 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
3-(Methylthio)propionaldehyde is the major product of chemical methionine conversion via Strecker degradation in food. It is a reactant involved in homolytic cross-coupling reactions, oxidative coupling and chemoselective oxidation, intermolecular alkyne hydroacylation reactions and oxxidation of sulfides to sulfoxides.
3-(Methylthio)propionaldehyde is used as biosynthetic precursor of ethylene1.
| Pubchem Sid | 488182494 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488182494 |
| Canonical Smiles | CSCCC=O |
| IUPAC Name | 3-methylsulfanylpropanal |
| InChIKey | CLUWOWRTHNNBBU-UHFFFAOYSA-N |
| INCHI | 1S/C4H8OS/c1-6-4-2-3-5/h3H,2,4H2,1H3 |
| Isomeric SMILES | CSCCC=O |
| WGK Germany | 1 |
| RTECS | UE2285000 |
| UN Number | 2785 |
| Packing Group | III |
| Molecular Weight | 104.17 |
| Beilstein | 1739289 |
| Reaxy-Rn | 1739289 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1739289&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 oxygen compounds |
| Class | Organooxygen compounds |
| Subclass | Carbonyl compounds |
| Intermediate Tree Nodes | Aldehydes |
| Direct Parent | Alpha-hydrogen aldehydes |
| Alternative Parents | Sulfenyl compounds Dialkylthioethers Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aliphatic acyclic compounds |
| Substituents | Alpha-hydrogen aldehyde - Dialkylthioether - Sulfenyl compound - Thioether - Organic oxide - Hydrocarbon derivative - Organosulfur compound - Aliphatic acyclic compound |
| Description | This compound belongs to the class of organic compounds known as alpha-hydrogen aldehydes. These are aldehydes with the general formula HC(H)(R)C(=O)H, where R is an organyl group. |
| External Descriptors | an organosulfur compound |
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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 | Jun 08, 2026 | M109548 | |
| Certificate of Analysis | Jun 08, 2026 | M109548 | |
| Certificate of Analysis | Feb 11, 2026 | M109548 | |
| Certificate of Analysis | Aug 19, 2025 | M109548 | |
| Certificate of Analysis | Aug 19, 2025 | M109548 | |
| Certificate of Analysis | May 29, 2025 | M109548 | |
| Certificate of Analysis | Mar 13, 2025 | M109548 | |
| Certificate of Analysis | Mar 13, 2025 | M109548 | |
| Certificate of Analysis | Mar 13, 2025 | M109548 | |
| Certificate of Analysis | Mar 13, 2025 | M109548 | |
| Certificate of Analysis | Mar 13, 2025 | M109548 | |
| Certificate of Analysis | Mar 13, 2025 | M109548 | |
| Certificate of Analysis | Nov 15, 2024 | M109548 | |
| Certificate of Analysis | Nov 15, 2024 | M109548 | |
| Certificate of Analysis | Apr 10, 2024 | M109548 | |
| Certificate of Analysis | Oct 24, 2022 | M109548 | |
| Certificate of Analysis | Oct 24, 2022 | M109548 | |
| Certificate of Analysis | Jan 22, 2022 | M109548 |
| Solubility | It is readily soluble in alcohol solvents such as ethanol, propylene and glycol oil. It is insoluble in water. |
|---|---|
| Sensitivity | Air & heat sensitive |
| Refractive Index | 1.484-1.493 |
| Flash Point(°F) | 61°C |
| Flash Point(°C) | 61°C |
| Boil Point(°C) | 165-166°C |
| Molecular Weight | 104.170 g/mol |
| XLogP3 | 0.300 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 3 |
| Exact Mass | 104.03 Da |
| Monoisotopic Mass | 104.03 Da |
| Topological Polar Surface Area | 42.400 Ų |
| Heavy Atom Count | 6 |
| Formal Charge | 0 |
| Complexity | 36.500 |
| 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 |
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| 5. Shibin Deng, Yun Zhai, Heping Cui, Khizar Hayat, Xiaoming Zhang, Chi-Tang Ho. (2022) Mechanism of Pyrazine Formation Intervened by Oxidized Methionines during Thermal Degradation of the Methionine–Glucose Amadori Compound. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, [PMID:36342227] [10.1021/acs.jafc.2c06458] |
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| 10. Zhenghong Hu, Pu Jia, Yajun Bai, Tai-ping Fan, Xiaohui Zheng, Yujie Cai. (2019) Characterisation of five alcohol dehydrogenases from Lactobacillus reuteri DSM20016. PROCESS BIOCHEMISTRY, [PMID:] [10.1016/j.procbio.2019.08.010] |
| 11. Fengchuan Yu, Yajun Bai, Tai-ping Fan, Xiaohui Zheng, Yujie Cai. (2019) Alcohol dehydrogenases from Proteus mirabilis contribute to alcoholic flavor. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, 99 (8): (4123-4128). [PMID:30761541] [10.1002/jsfa.9642] |
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