Description

2-Hydroxybutyl 2-propenoate is a versatile acrylate ester monomer, also known by its CAS number 2421-27-4. This compound is valued for its bifunctional nature, containing both a polymerizable acrylate group and a hydroxyl group, enabling its use as a reactive diluent and crosslinking agent in advanced polymer formulations. It is primarily sought by manufacturers in the coatings, adhesives, and specialty polymer industries for developing products with tailored properties such as enhanced flexibility, adhesion, and chemical resistance.

Application

• UV-Curable Coatings & Inks: Acts as a reactive diluent and crosslinker to modify viscosity and improve film flexibility and adhesion on various substrates.
• Acrylic Resin Synthesis: Serves as a co-monomer for producing specialty acrylic polymers with pendant hydroxyl functionality for further modification.
• Adhesives & Sealants: Imparts improved toughness and weatherability to acrylic-based pressure-sensitive and structural adhesive formulations.
• Fiber Reinforced Polymers (FRP): Used in gel coats and resin systems for composites, contributing to surface finish and mechanical properties.
• Photopolymer Resins: A key component in formulations for 3D printing (stereolithography) and photoresists, where precise curing is critical.
• Chemical Intermediate: The hydroxyl group allows for further chemical reactions, making it a useful building block for synthesizing more complex specialty chemicals.

Basic Information

Product Name	2-Hydroxybutyl 2-propenoate
CAS No.	2421-27-4
Molecular Formula	C7H12O3
Molecular Weight	144.17 g/mol
Synonyms	2-Hydroxybutyl acrylate; 1-Butanol, 2-hydroxy-, acrylate; Acrylic acid, 2-hydroxybutyl ester; 2-Hydroxybutyl acrylate; β-Hydroxybutyl acrylate; 2-Hydroxy-n-butyl acrylate; 2-Acryloyloxybutan-1-ol
EINECS	219-345-8

Quality Control

Our 2-Hydroxybutyl 2-propenoate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, purity, and identity confirmation, to ensure it meets precise specifications and is free from unintended impurities. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and batch-to-batch consistency for your formulation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). This product is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flame. For long-term storage, consider maintaining under an inert gas blanket (e.g., nitrogen or argon) to minimize oxidation and polymerization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0 %
Color (APHA)	≤ 50
Water Content (KF)	≤ 0.2 %
Acidity (as acrylic acid)	≤ 0.5 %
Inhibitor (MEHQ)	100 - 250 ppm

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