Methacrylonitrile
Methacrylonitrile (CAS: 126-98-7; Formula: CH2=C(CH3)CN) is a reactive organic compound with a molecular weight of 67.09 g/mol. This clear liquid, inhibiting polymerization, serves as a key monomer in the synthesis of various polymers and copolymers. Its chemical structure allows for versatile applications in materials science and specialty chemical production. Methacrylonitrile is supplied by Tech Serve Solutions with a typical purity of 99%.

Polymer Synthesis
Methacrylonitrile is utilised as a monomer in the production of polymers and copolymers. It can be incorporated into polymer chains to impart specific properties, such as improved thermal stability or chemical resistance.
Chemical Intermediate
This compound acts as an intermediate in the synthesis of more complex organic molecules. Its reactive double bond and nitrile group allow for diverse chemical transformations.
Materials Science Research
Researchers in materials science may use methacrylonitrile as a building block for developing novel materials with tailored characteristics. Its unique structure is valuable for creating specialised polymers.
| Molecular weight | 67.09 |
|---|---|
| Linear formula | CH2=C(CH3)CN |
| Assay | 99% |
| Boiling point | 90-92 °C(lit.) |
| Density | 0.8 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.400(lit.) |
| Vapour pressure | 64 mmHg (20 °C) |
| Melting point | −35.8 °C(lit.) |
| Contains / stabiliser | 50 ppm monomethyl ether hydroquinone as inhibitor |


Hazard statements
- H225Highly flammable liquid and vapour
- H301Toxic if swallowed
- H317May cause an allergic skin reaction
- H330Fatal if inhaled
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 12 °C / 53.6 °F |
| Transport (UN / ADR) | UN 3079 6.1(3) / PGI |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | F,T |
| Risk statements (R) | 11-23/24/25-43 |
| Safety statements (S) | 9-16-18-29-45 |
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 Methacrylonitrile used for?
+
Methacrylonitrile is primarily used as a monomer in polymer synthesis and as an intermediate in the production of other organic chemicals. It is also employed in materials science research.
What is the CAS number and formula for Methacrylonitrile?
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The CAS number for Methacrylonitrile is 126-98-7, and its chemical formula is CH2=C(CH3)CN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methacrylonitrile with a minimum purity of 99%. TSS does not represent this product as USP, BP, EP, or any pharmacopoeia grade.
How is Methacrylonitrile handled and stored?
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Methacrylonitrile is highly flammable and toxic. Handle with extreme care in a well-ventilated area, wearing appropriate personal protective equipment including eyeshields, faceshields, gloves, and a suitable respirator. Store away from ignition sources.
How is Methacrylonitrile packed, shipped, and exported?
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Methacrylonitrile is typically packed in accordance with international regulations for hazardous materials. Tech Serve Solutions exports this chemical globally, adhering to all relevant transport and customs requirements.
How can I request a sample or quote for Methacrylonitrile?
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To request a sample or a quote for Methacrylonitrile, please contact the Tech Serve Solutions sales team through our website or by phone.
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