Ethylene sulfide
Ethylene sulfide (CAS: 420-12-2), with the molecular formula C2H4S and a molecular weight of 60.12 g/mol, is a volatile organosulfur compound. This cyclic sulfide is a key intermediate in organic synthesis. It is primarily utilised as a building block in the preparation of various sulphur-containing organic compounds, demonstrating significant utility in chemical synthesis and research applications. The compound is supplied with a stabilizer.
- IUPAC
- Dimethylene sulfide,Thiirane
- Synonyms
- Dimethylene sulfideThiirane

Organic Synthesis Reagent
Ethylene sulfide serves as a versatile building block in the synthesis of complex organic molecules. Its reactivity allows for the introduction of sulfur functionalities, crucial in the development of novel compounds for various chemical research endeavours.
Chemical Research Intermediate
As a key intermediate, Ethylene sulfide is employed in research laboratories for the creation of diverse sulfur-containing organic structures. Its specific chemical properties make it valuable for exploring new synthetic pathways and materials.
Sulfur Compound Precursor
This compound acts as a precursor for a range of sulfur-based chemicals. Its structure facilitates its transformation into various sulfides and other organosulfur derivatives utilised in specialized chemical applications.
| Molecular weight | 60.12 |
|---|---|
| Empirical formula | C2H4S |
| Assay | ≥97.5% (GC) |
| Boiling point | 55-56 °C(lit.) |
| Density | 1.01 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.495(lit.)n20/D 1.495 |
| Vapour pressure | 4.15 psi (20 °C) |
| Storage temperature | 2-8°C |
| Contains / stabiliser | ~1% butylmercaptan as stabilizer |



Hazard statements
- H225Highly flammable liquid and vapour
- H301Toxic if swallowed
- H318Causes serious eye damage
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P311Call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 10 °C / 50 °F |
| Transport (UN / ADR) | UN 1992 3/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,T |
| Risk statements (R) | 11-23/25-41 |
| Safety statements (S) | 16-26-39-45 |
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 Ethylene sulfide used for?
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Ethylene sulfide is primarily used as a building block in organic synthesis and as an intermediate in the preparation of various sulfur-containing organic compounds for chemical research.
What is the CAS number and formula for Ethylene sulfide?
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The CAS number for Ethylene sulfide is 420-12-2, and its molecular formula is C2H4S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethylene sulfide with an assay of ≥97.5% (GC). We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
What are the main safety concerns when handling Ethylene sulfide?
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Ethylene sulfide is highly flammable and toxic. It can cause serious eye damage and is harmful if swallowed or inhaled. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, is essential. Handle only in well-ventilated areas or under a fume hood.
How is Ethylene sulfide packed and shipped?
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Ethylene sulfide is packed according to relevant safety and transport regulations. As a global supplier and exporter, Tech Serve Solutions ensures compliant shipping practices for this hazardous material.
How can I request a quote or sample of Ethylene sulfide?
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To request a quote or sample of Ethylene sulfide, please contact our sales team through the website or provide your details via the 'Enquire Now' form. Our team will respond promptly.
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