Fumaronitrile
Fumaronitrile (CAS: 764-42-1), with the linear formula NCCH=CHCN and a molecular weight of 78.07 g/mol, is a dinitrile compound. It is a white crystalline solid and serves as a versatile building block in organic synthesis. Its reactivity makes it valuable for creating complex organic molecules, particularly in the development of pharmaceuticals and advanced materials.
- IUPAC
- trans-1,2-Dicyanoethylene
- Synonyms
- trans-1,2-Dicyanoethylene

Organic Synthesis Intermediate
Fumaronitrile is widely employed as a key intermediate in the synthesis of various organic compounds. Its dinitrile functionality allows for diverse chemical transformations, leading to heterocyclic compounds and other complex molecular structures.
Material Science Precursor
The compound can be utilized in the development of novel polymers and functional materials. Its structure lends itself to polymerization reactions or incorporation into larger molecular frameworks with specific electronic or optical properties.
Pharmaceutical Research
Fumaronitrile acts as a foundational building block for synthesizing potential pharmaceutical agents. Its reactive nature facilitates the construction of diverse chemical scaffolds explored in drug discovery programs.
| Molecular weight | 78.07 |
|---|---|
| Linear formula | NCCH=CHCN |
| Assay | ≥98.0% (GC) |
| Boiling point | 186 °C(lit.) |
| Melting point | 93-95 °C(lit.) |

Hazard statements
- H301Toxic if swallowed
- H331Toxic if inhaled
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P301IF SWALLOWED
- P311Call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3439 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 23/25 |
| Safety statements (S) | 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 Fumaronitrile used for?
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Fumaronitrile is primarily used as a versatile building block in organic synthesis, particularly for creating pharmaceuticals and advanced materials. Its reactive dinitrile groups enable a variety of chemical transformations.
What are the CAS number and formula for Fumaronitrile?
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The CAS number for Fumaronitrile is 764-42-1 and its linear formula is NCCH=CHCN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Fumaronitrile with an assay of ≥98.0% (GC). TSS does not represent this product as USP, BP, EP, or pharmacopoeia grade.
What are the primary safety hazards associated with Fumaronitrile?
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Fumaronitrile is classified as Danger. It is toxic if swallowed (H301) and toxic if inhaled (H331). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and P2 respirator cartridges, must be used. Handle with extreme caution in a well-ventilated area.
Is Fumaronitrile shipped internationally?
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Yes, Tech Serve Solutions, as a specialist global supplier and exporter, ships Fumaronitrile internationally.
How can I request a quote or sample for Fumaronitrile?
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To request a quote or a sample of Fumaronitrile, please contact our sales team through the website or directly via email.
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