Description

Methacrylonitrile is a highly reactive, colorless liquid monomer belonging to the nitrile family, with the CAS registry number 126-98-7. It serves as a critical building block in polymer chemistry, valued for its ability to introduce nitrile and vinyl functionalities into polymer chains, enhancing properties like solvent resistance and thermal stability. This versatile intermediate is essential for manufacturers in the polymer, specialty chemical, and pharmaceutical industries seeking to develop advanced materials and fine chemicals.

Application

• Polymer Synthesis: Primary monomer for producing specialty polymers, including poly(methacrylonitrile) and various copolymers.
• Acrylic Fiber Modification: Used as a co-monomer to modify the properties of acrylic fibers, improving dyeability and chemical resistance.
• Adhesive & Coating Resins: A key component in the formulation of high-performance adhesives, coatings, and sealants.
• Pharmaceutical Intermediates: Serves as a precursor in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Organic Synthesis: Utilized in various organic reactions, including Michael additions and cyanoethylation processes.
• Chemical Research & Development: Employed in R&D laboratories for developing new polymeric materials and functional molecules.

Basic Information

Product Name	Methacrylonitrile
CAS No.	126-98-7
Molecular Formula	C4H5N
Molecular Weight	67.09 g/mol
Synonyms	2-Methyl-2-propenenitrile; Isopropenylnitrile; 2-Methylacrylonitrile; MAN; Methacrylic acid nitrile; α-Methylacrylonitrile; 2-Cyano-1-propene; 2-Methylpropenenitrile
EINECS	204-817-5

Quality Control

Our Methacrylonitrile is manufactured under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including purity assay and impurity profiling via GC and HPLC, to ensure it meets exacting standards for industrial and research applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flame. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) to maintain purity and prevent polymerization. Keep away from strong oxidizing agents, acids, and bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %
Inhibitor (MEHQ)	50-150 ppm
Refractive Index (n20D)	1.398 - 1.402
Density (20°C)	0.800 - 0.810 g/mL

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.