CAS: 97-88-1
SKU: S3038
Butyl methacrylate | SKU: S3038
Synonyms: n-Butyl methacrylate; 2-Propenoic acid, 2-methyl-, butyl ester
Butyl Methacrylate is an acrylic-class monomer that Sarchem Labs supplies as a clear, colorless liquid, stabilized with hydroquinone (HQ) to prevent premature polymerization during storage and transport. It’s a standard building block for polymer chemists formulating acrylic resins, coatings, and adhesives. Every lot ships with a Certificate of Analysis and Safety Data Sheet, giving formulation and QC teams documented purity and stabilizer-content confirmation before it enters a production batch.

Specifications

Boiling Point164°C
Melting Point25°C
Density0.8936 g/cm³
Flash Point50°C
ColorColorless
Linear FormulaCH2=C(CH3)COO(CH2)3CH3
Formula Weight142.20
Physical FormClear liquid
Chemical Name or MaterialButyl Methacrylate (stabilized with HQ)
UN NumberUN2227
Molecular FormulaC8H14O2
Molecular Weight142.20 g/mol
CAS Number97-88-1
EC Number202-615-1
PubChem CID7354
RTECS NumberOZ3675000

Applications

Acrylic resin and polymer synthesis (homopolymer and copolymer formulations)
Coatings and paint formulation (film-forming monomer)
Adhesive formulation raw material
Denture and dental-resin component research
Specialty polymer research requiring a butyl-ester methacrylate building block

Product Description

What is Butyl Methacrylate?

Butyl methacrylate is an ester of methacrylic acid and n-butanol, carrying a reactive vinyl (C=C) group that readily undergoes free-radical polymerization to build acrylic polymer chains. Sarchem’s material is stabilized with hydroquinone (HQ), a radical inhibitor that keeps the monomer from polymerizing prematurely in the container — standard practice for reactive acrylic monomers shipped and stored over time.

Uses of Butyl Methacrylate

As a monomer, butyl methacrylate is polymerized (alone or copolymerized with other acrylates/methacrylates) to build acrylic resins used in coatings, paints, and adhesive formulations, where its butyl ester group contributes flexibility and lower glass-transition temperature compared to shorter-chain methacrylates. It also appears in dental and denture resin research, and more broadly wherever a specialty polymer chemist needs a butyl-ester methacrylate building block.

Safety Information

  • Hazard Statements: H226 (Flammable liquid and vapor), H315 (Skin irritation), H317 (May cause allergic skin reaction), H319 (Serious eye irritation), H335 (May cause respiratory irritation)
  • Classification: Flam. Liq. 3; Skin Irrit. 2; Eye Irrit. 2; Skin Sens. 1; STOT SE 3
  • Flash Point: 50°C
  • PPE: Chemical-resistant gloves, safety goggles, protective clothing
  • Handling: Keep away from ignition sources; use in a well-ventilated area; the HQ stabilizer requires adequate headspace/oxygen to remain effective — do not store under fully inert/deoxygenated conditions without confirming compatibility

Related Products

FAQs: Butyl methacrylate

Mainly as an acrylic monomer for polymer, coatings, and adhesive synthesis, where it's polymerized into resins that benefit from its flexible butyl-ester group.

HQ is a radical inhibitor added to prevent the reactive vinyl group from polymerizing spontaneously during storage and shipping — without it, the monomer could gel or solidify in the container over time.

Yes — it's classified as a Category 3 flammable liquid (H226) with a flash point of 50°C, so it must be kept away from ignition sources and stored per flammable-liquid protocols.

97-88-1, C8H14O2, molecular weight 142.20 g/mol.

Chemical-resistant gloves, safety goggles, and protective clothing, used in a well-ventilated area — it's a skin/eye/respiratory irritant and a known skin sensitizer (H317).