Description

3-Butenoic Acid, 2-Hydroxy-2-Methyl-, Ethyl Ester is a versatile bifunctional monomer featuring both a reactive hydroxyl group and a polymerizable vinyl group. This unique molecular structure makes it a valuable building block for synthesizing specialty polymers with tailored properties, such as enhanced adhesion, flexibility, and cross-linking density. It is primarily sought after by R&D chemists and production engineers in the polymer, coatings, and advanced materials industries for developing innovative resin systems and functional additives.

Application

• Synthesis of Acrylic Resins & Copolymers: Serves as a key monomer for producing hydroxyl-functional acrylic resins used in high-performance coatings, adhesives, and inks.
• UV-Curable Systems: Used in the formulation of oligomers and prepolymers for UV-curable coatings and inks, contributing to rapid curing and excellent film properties.
• Cross-Linking Agent: Functions as a reactive diluent and cross-linker in polyurethane and polyester systems, improving mechanical strength and chemical resistance.
• Intermediate for Specialty Chemicals: Acts as a crucial synthetic intermediate for pharmaceuticals, agrochemicals, and other fine chemicals requiring its specific functional groups.
• Adhesive Formulations: Enhances the performance of structural and pressure-sensitive adhesives by providing sites for cross-linking with isocyanates or melamine resins.
• Modifier for Polymer Properties: Incorporated to modify the hydrophilicity, Tg (glass transition temperature), and toughness of various polymer backbones.

Basic Information

Product Name	3-Butenoic Acid, 2-Hydroxy-2-Methyl-, Ethyl Ester
CAS No.	50471-46-0
Molecular Formula	C8H14O3
Molecular Weight	158.20 g/mol
Synonyms	2-Hydroxy-2-methyl-3-butenoic acid ethyl ester; Ethyl 2-hydroxy-2-methyl-3-butenoate; 2-Methyl-2-hydroxy-3-butenoic acid ethyl ester; β,β-Dimethylacrylic acid β-hydroxyethyl ester (related); Hydroxy-functional vinyl monomer; Reactive acrylate monomer
EINECS	Contact for details

Quality Control

Our production of 3-Butenoic Acid, 2-Hydroxy-2-Methyl-, Ethyl Ester adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against rigorous internal specifications, with key parameters including assay, identity, and impurity profiles verified. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.430 - 1.440
Density (20°C)	1.010 - 1.050 g/mL

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