Description

[1-Methyl-2-[(2-Methyl-1-Oxoallyl)Oxy]Ethyl] Hydrogen Maleate is a specialized organic ester compound with a complex molecular structure, serving as a key reactive intermediate in advanced chemical synthesis. Its primary value lies in its bifunctional nature, containing both a maleate moiety and an unsaturated keto-ester group, which makes it a versatile building block for creating polymers, cross-linking agents, and specialty additives. This product is essential for R&D chemists and production engineers in the pharmaceutical intermediates, advanced polymer resins, and specialty coatings sectors who require high-purity, functional monomers for innovative material development.

Application

• Polymer & Resin Modification: Acts as a reactive diluent or cross-linking agent in the synthesis of unsaturated polyester resins (UPR) and acrylic polymers, enhancing mechanical properties and thermal stability.
• Pharmaceutical Intermediate: Serves as a crucial building block in the multi-step synthesis of complex active pharmaceutical ingredients (APIs) and prodrugs.
• Specialty Coatings & Adhesives: Used in formulating high-performance radiation-curable (UV/EB) coatings, inks, and adhesives, contributing to improved adhesion and cure speed.
• Chemical Research & Development: Employed as a model compound or precursor in organic synthesis for developing new monomers, dendrimers, or functional materials.
• Cross-linking Agent for Elastomers: Imparts cross-links in synthetic rubbers and elastomers to improve their resistance to heat, chemicals, and compression set.

Basic Information

Product Name	[1-Methyl-2-[(2-Methyl-1-Oxoallyl)Oxy]Ethyl] Hydrogen Maleate
CAS No.	22789-96-4
Molecular Formula	C11H14O6
Molecular Weight	242.23 g/mol
Synonyms	2-[(2-Methyl-1-oxoallyl)oxy]ethyl hydrogen maleate; 2-Methyl-2-propenoic acid 2-[(1-oxo-2-methyl-2-propen-1-yl)oxy]ethyl ester; Maleic acid mono(2-((2-methyl-1-oxoallyl)oxy)ethyl) ester; 2-Hydroxyethyl methacrylate hydrogen maleate (HEMA hydrogen maleate); Methacryloyloxyethyl hydrogen maleate; Reactive methacrylate ester; Bifunctional methacrylate monomer
EINECS	Contact for details

Quality Control

Our [1-Methyl-2-[(2-Methyl-1-Oxoallyl)Oxy]Ethyl] Hydrogen Maleate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity, consistent composition, and reliable performance in your applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). Keep away from heat sources, open flames, and incompatible materials such as strong oxidizing agents, bases, and amines. The container must be kept tightly sealed to prevent moisture absorption and potential polymerization.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Acid Value	Contact for details
Refractive Index (20°C)	Contact for details
Density (20°C)	Contact for details

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