Description

(Z)-2-Butenedioic Acid Bis[3-Hydroxy-2-(Hydroxymethyl)-2-Methylpropyl] Ester is a specialized diester derivative of maleic acid, valued for its unique bifunctional chemical structure containing both ester linkages and multiple hydroxyl groups. This compound serves as a versatile chemical intermediate and reactive diluent, enabling the synthesis of advanced polymers and functional materials with tailored properties. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as by producers of specialty plasticizers and cross-linking agents.

Application

• Polymer & Resin Modification: Acts as a reactive monomer or cross-linking agent in the production of alkyd, polyester, and polyurethane resins, enhancing flexibility and adhesion.
• High-Performance Coatings: Used in the formulation of UV-curable coatings, powder coatings, and industrial finishes to improve durability, gloss, and chemical resistance.
• Adhesive & Sealant Systems: Serves as a building block for pressure-sensitive adhesives (PSAs) and structural sealants, contributing to tack and cohesive strength.
• Specialty Plasticizers: Functions as a polymeric plasticizer for PVC and other polymers, offering low volatility and improved migration resistance.
• Dendrimer & Hyperbranched Polymer Synthesis: Utilized as a core or branching unit due to its multiple hydroxyl functionalities.
• Pharmaceutical & Cosmetic Intermediates: Employed in the synthesis of prodrugs or delivery agents where controlled release is required.

Basic Information

Product Name	(Z)-2-Butenedioic Acid Bis[3-Hydroxy-2-(Hydroxymethyl)-2-Methylpropyl] Ester
CAS No.	72829-16-4
Molecular Formula	C16H28O8
Molecular Weight	348.39 g/mol
Synonyms	Bis(3-hydroxy-2-(hydroxymethyl)-2-methylpropyl) maleate; Maleic acid bis(3-hydroxy-2,2-dimethylpropyl) ester; 2-Butenedioic acid (2Z)-, 1,4-bis[3-hydroxy-2-(hydroxymethyl)-2-methylpropyl] ester; 1,4-Bis(2,2-dimethyl-3-hydroxypropyl) maleate; 2,2-Bis(hydroxymethyl)-3-hydroxybutyl maleate; Diol maleate ester; Hydroxyl-functional maleate diester
EINECS	Contact for details

Quality Control

Our production of (Z)-2-Butenedioic Acid Bis[3-Hydroxy-2-(Hydroxymethyl)-2-Methylpropyl] Ester adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, titration for hydroxyl value, and GC for residual solvents, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) documenting identity, assay, and impurity profiles are available upon request. We support cGMP and ISO 9001 standards for industrial and potential pharmaceutical intermediate 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 alkalis and incompatible organic solvents. The container should be kept tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Hydroxyl Value	Contact for details
Acid Value	≤ 2.0 mg KOH/g
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	~1.18
Refractive Index (20°C)	~1.470 - 1.480

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