Tetracyanoethylene oxide
Tetracyanoethylene oxide (CAS: 3189-43-3), with the molecular formula C6N4O and a molecular weight of 144.09 g/mol, is a reactive organic compound. It is primarily recognised for its utility as a specialised monomer in materials science and polymer research. Its unique structure allows for incorporation into novel polymer architectures and functional materials, underpinning its role in advanced chemical synthesis and development.
- IUPAC
- Oxiranetetracarbonitrile,TCNEO
- Synonyms
- Oxiranetetracarbonitrile,TCNEO

Monomer for Polymer Synthesis
Tetracyanoethylene oxide serves as a unique epoxide monomer. Its incorporation into polymer chains can impart specific electronic or physical properties, useful in the development of advanced functional polymers.
Materials Science Research
The compound's reactive nature makes it a valuable building block in materials science for creating novel organic materials. It can be employed in research exploring new composite or functionalised material applications.
Chemical Synthesis Intermediate
As a reactive intermediate, Tetracyanoethylene oxide can be utilised in multi-step organic syntheses. Its cyano and epoxide functionalities offer diverse reaction pathways for creating complex molecules.
| Molecular weight | 144.09 |
|---|---|
| Empirical formula | C6N4O |
| Assay | 95% |
| Storage temperature | 2-8°C |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H332Harmful if inhaled
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3439 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22 |
| Safety statements (S) | 36/37 |
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 Tetracyanoethylene oxide used for?
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Tetracyanoethylene oxide (CAS: 3189-43-3) is primarily used as a specialised epoxide monomer in polymer science and materials science research, and as an intermediate in organic synthesis.
What is the CAS number and formula for Tetracyanoethylene oxide?
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The CAS number for Tetracyanoethylene oxide is 3189-43-3, and its empirical formula is C6N4O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetracyanoethylene oxide with an assay of 95%. We do not represent this product as meeting any pharmacopoeia standards such as USP, BP, or EP.
How should Tetracyanoethylene oxide be handled?
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Tetracyanoethylene oxide is classified with GHS07 symbol and a Warning signal word. It is harmful if swallowed, in contact with skin, and if inhaled (H302-H312-H332). Appropriate personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area.
Is Tetracyanoethylene oxide a controlled substance?
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The provided data does not indicate that Tetracyanoethylene oxide is a controlled substance.
How is Tetracyanoethylene oxide packed and shipped?
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Tetracyanoethylene oxide is classified under UN 3439, Class 6.1, Packing Group III. It is packaged and exported according to relevant transport regulations.
How can I request a sample or quote for Tetracyanoethylene oxide?
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To request a sample or a quote for Tetracyanoethylene oxide, please contact our sales department through the website or by phone.
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