Ethyl methyl sulfide
Ethyl methyl sulfide (CAS: 624-89-5), with the chemical formula CH3CH2SCH3 and a molecular weight of 76.16 g/mol, is a colourless liquid belonging to the organic sulfur compounds class. It serves as a valuable building block in organic synthesis. Utilised in chemical research and development, its specific applications leverage its thioether functional group for various synthetic transformations. Tech Serve Solutions provides this compound for laboratory and industrial research purposes.
- IUPAC
- MES™

Organic Synthesis Intermediate
Ethyl methyl sulfide is employed as an intermediate in the synthesis of more complex organic molecules. Its thioether moiety can participate in various reactions, making it a useful building block for creating diverse chemical structures.
Research and Development
This compound is utilised in academic and industrial research laboratories for exploring novel chemical reactions and developing new synthetic methodologies. Its properties are of interest in the field of organosulfur chemistry.
Material Science Exploration
Potential applications exist in material science, where sulfur-containing compounds can influence the properties of polymers or other advanced materials. Further research may uncover specific uses in this domain.
| Molecular weight | 76.16 |
|---|---|
| Linear formula | CH3CH2SCH3 |
| Boiling point | 66-67 °C(lit.) |
| Density | 0.842 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.440(lit.) |
| Vapour pressure | 272 mmHg (37.7 °C) |
| Melting point | −106 °C(lit.) |

Hazard statements
- H225Highly flammable liquid and vapour
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -15 °C / 5 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11 |
| Safety statements (S) | 16-23-24/25 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Ethyl methyl sulfide used for?
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Ethyl methyl sulfide is primarily used as an intermediate in organic synthesis and in research and development for exploring novel chemical reactions and developing new synthetic methodologies.
What are the CAS number and formula for Ethyl methyl sulfide?
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The CAS number for Ethyl methyl sulfide is 624-89-5, and its chemical formula is CH3CH2SCH3.
What grade and purity does Tech Serve Solutions supply for Ethyl methyl sulfide?
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Tech Serve Solutions typically supplies Ethyl methyl sulfide in research or technical grades. We do not represent it as USP, BP, or EP grade. Please refer to the product specifications for detailed purity information.
How should Ethyl methyl sulfide be handled safely?
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Ethyl methyl sulfide is a highly flammable liquid and vapour (H225). Handle with care in a well-ventilated area, away from ignition sources. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (e.g., type ABEK respirator filter), is essential. Refer to the Safety Data Sheet (SDS) for comprehensive safety instructions.
How is Ethyl methyl sulfide packaged and shipped?
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Ethyl methyl sulfide is packaged securely in compliance with transport regulations. Tech Serve Solutions exports chemicals globally; please contact us to discuss your specific shipping and delivery requirements.
How can I request a quote or sample for Ethyl methyl sulfide?
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To request a quote or a sample of Ethyl methyl sulfide, please use the contact form on our website or reach out to our sales department directly. We aim to respond promptly to all inquiries.
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