Description

Maleic Acid Hydrogen 1-(3-Hydroxypropyl) Ester is a versatile bifunctional chemical intermediate, combining both carboxylic acid and hydroxyl functional groups in its structure. This unique molecular architecture makes it a valuable building block for the synthesis of polymers, resins, and specialty esters. It is primarily sought after by manufacturers in the polymer, coatings, and adhesives industries for its ability to introduce cross-linking sites and modify material properties.

Application

• Polymer Modification: Acts as a reactive monomer or cross-linking agent in the production of unsaturated polyester resins (UPR) and alkyd resins, enhancing hardness and chemical resistance.
• Coating Formulations: Used in the synthesis of high-performance industrial and automotive coatings to improve adhesion, durability, and gloss.
• Adhesive & Sealant Production: Serves as a key intermediate for creating pressure-sensitive adhesives (PSAs) and structural sealants with tailored flexibility and strength.
• Plasticizer Synthesis: A precursor for manufacturing specialized polymeric plasticizers that offer low volatility and improved compatibility with PVC and other polymers.
• Chemical Intermediate: Utilized in organic synthesis for further reactions, including esterification and etherification, to produce more complex molecules for pharmaceutical or agrochemical applications.
• Textile Auxiliaries: Incorporated into fabric finishing agents and dye intermediates to enhance fiber properties and processing.

Basic Information

Product Name	Maleic Acid Hydrogen 1-(3-Hydroxypropyl) Ester
CAS No.	58697-30-6
Molecular Formula	C7H10O5
Molecular Weight	174.15 g/mol
Synonyms	3-Hydroxypropyl hydrogen maleate; 1-(3-Hydroxypropyl) hydrogen maleate; Maleic acid mono(3-hydroxypropyl) ester; 3-Hydroxypropyl monomaleate; Propane-1,3-diol monomaleate; Hydroxypropyl maleate (partial ester); HPMA (Hydroxypropyl Maleate); 2-Butenedioic acid (Z)-, mono(3-hydroxypropyl) ester
EINECS	Contact for details

Quality Control

Our production of Maleic Acid Hydrogen 1-(3-Hydroxypropyl) Ester adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment. We support customer audits and can supply material to meet specific regulatory or GMP guidelines for advanced applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as oxidizing agents. The container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Acid Value	Contact for details
Hydroxyl Value	Contact for details
Specific Gravity (20°C)	Contact for details

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