Ethylenebis(chloroformate)
Ethylenebis(chloroformate), CAS 124-05-0, possesses the linear formula ClCO2CH2CH2O2CCl and a molecular weight of 186.98 g/mol. This acid halide is a valuable organic building block utilised in chemical synthesis. Its reactivity makes it suitable for introducing specific functional groups in the preparation of more complex molecules, finding applications in research and industrial chemical processes.

Organic Synthesis Intermediate
Ethylenebis(chloroformate) serves as a key intermediate in organic synthesis. It is employed to introduce the ethyleneoxycarbonyl group into various molecules, facilitating the creation of polymers, pharmaceuticals, and other fine chemicals.
Crosslinking Agent
Due to its difunctional nature, this compound can act as a crosslinking agent. It reacts with nucleophiles on different polymer chains or molecules, leading to the formation of networked structures and modified material properties.
Reagent in Specialty Chemical Production
Its specific reactivity profile allows for its use in the synthesis of specialised chemical compounds. This includes its role in the preparation of specific esters and carbonates in research and development settings.
| Molecular weight | 186.98 |
|---|---|
| Linear formula | ClCO2CH2CH2O2CCl |
| Assay | 98% |
| Boiling point | 53-55 °C/0.3 mmHg(lit.)53-55 °C/0.3 mmHg |
| Density | 1.436 g/mL at 25 °C(lit.)1.4364 g/mL at 25 °C |
| Refractive index | n20/D 1.436(lit.)n20/D 1.4500 |
| Storage temperature | 2-8°C |


Hazard statements
- H302Harmful if swallowed
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | >110 °C / >230 °F |
| Transport (UN / ADR) | UN 3265 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 22-34 |
| Safety statements (S) | 26-36/37/39-45 |
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 Ethylenebis(chloroformate) used for?
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Ethylenebis(chloroformate) (CAS 124-05-0) is used as an intermediate in organic synthesis, a crosslinking agent, and a reagent in the production of specialty chemicals and polymers.
What are the CAS number and formula for Ethylenebis(chloroformate)?
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The CAS number for Ethylenebis(chloroformate) is 124-05-0, and its linear formula is ClCO2CH2CH2O2CCl.
What grade and purity does Tech Serve Solutions supply for Ethylenebis(chloroformate)?
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Tech Serve Solutions supplies Ethylenebis(chloroformate) with an assay of 98%. This is a technical grade material and is not represented as USP, BP, or EP grade.
How should Ethylenebis(chloroformate) be handled safely?
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Ethylenebis(chloroformate) is corrosive and harmful if swallowed (H302-H314). It requires careful handling with appropriate personal protective equipment, including gloves, goggles, and face shields. Ensure adequate ventilation and follow all safety precautions provided in the Safety Data Sheet.
How is Ethylenebis(chloroformate) packed and exported?
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Ethylenebis(chloroformate) is packed and exported in compliance with UN 3265, Class 8, Packing Group III regulations. We ensure all shipments meet international shipping standards for hazardous materials.
How can I request a sample or quote for Ethylenebis(chloroformate)?
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To request a sample or quote for Ethylenebis(chloroformate), please contact our sales team via the website or direct email, providing your specific requirements.
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