Description

Butyl Maleurate CAS NO 140-98-7 is a high-purity ester derivative of maleic acid, valued for its role as a versatile chemical intermediate and monomer. Its bifunctional structure, containing both an ester and a carboxylic acid group, makes it a critical building block for synthesizing specialized polymers, resins, and fine chemicals. This product is essential for manufacturers in the coatings, adhesives, and specialty chemical industries seeking to enhance product performance through tailored molecular design.

Application

• Polymer & Resin Modification: Serves as a reactive monomer or cross-linking agent in the production of alkyd resins, unsaturated polyester resins (UPR), and polyurethane dispersions (PUDs) to improve flexibility, adhesion, and chemical resistance.
• Coating & Adhesive Formulations: Used in the synthesis of high-performance industrial and protective coatings, as well as pressure-sensitive and structural adhesives, contributing to durability and weatherability.
• Plasticizer & Stabilizer Intermediate: Acts as a precursor for manufacturing specialized plasticizers and stabilizers used in PVC and other polymer systems.
• Lubricant & Fuel Additive Synthesis: Employed in creating ester-based synthetic lubricants and performance-enhancing additives for fuels and hydraulic fluids.
• Fine Chemical & Pharmaceutical Intermediates: Utilized in organic synthesis routes for producing agrochemicals, pharmaceuticals, and other value-added specialty chemicals.
• Textile & Leather Auxiliary Chemicals: Incorporated into formulations for textile finishing agents, leather treatment chemicals, and dye intermediates.

Basic Information

Product Name	Butyl Maleurate
CAS No.	140-98-7
Molecular Formula	C8H12O4
Molecular Weight	172.18 g/mol
Synonyms	Butyl hydrogen maleate; n-Butyl hydrogen maleate; Maleic acid mono-n-butyl ester; Mono-n-butyl maleate; 2-Butoxycarbonylacrylic acid; Butyl maleate half-ester; 1-Butyl hydrogen maleate
EINECS	205-451-9

Quality Control

Our Butyl Maleurate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, purity, and impurity profile analysis, to meet exacting customer specifications. A Certificate of Analysis (COA) documenting all test results is provided with every shipment to guarantee compliance with your technical requirements.

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 oxidizers, bases, and sources of heat or ignition to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Acid Value	Contact for details
Water Content (KF)	≤ 0.5 %
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.