Description

1,2-Benzenedicarboxylic Acid Bis[3-Hydroxy-2-(Hydroxymethyl)-2-Methylpropyl] Ester is a specialized, high-purity diester derivative of phthalic acid, valued for its unique combination of hydroxyl functionality and ester linkages. This compound is engineered to serve as a versatile reactive intermediate and performance additive, offering enhanced compatibility and reactivity in advanced polymer systems. It is primarily sought by formulators and manufacturers in the polymer, coatings, and specialty chemical industries seeking to modify material properties such as flexibility, adhesion, and cross-linking density.

Application

• Polymer Plasticizer & Modifier: Acts as a reactive plasticizer and cross-linking agent in polyurethane, polyester, and epoxy resin formulations to improve flexibility and durability.
• UV-Curable Coating & Ink Resins: Serves as a key monomer or oligomer in radiation-curable systems for coatings, inks, and adhesives, contributing to fast curing and enhanced film properties.
• Specialty Adhesive & Sealant Formulations: Used to enhance the adhesion, cohesion, and weatherability of high-performance adhesives and sealants.
• Synthetic Lubricant & Hydraulic Fluid Additive: Functions as a base fluid or additive component to improve thermal stability and lubricity in synthetic lubricants.
• Pharmaceutical & Cosmetic Excipient Intermediate: Employed in the synthesis of specific pharmaceutical excipients or delivery agents where precise ester chemistry is required.
• Dendrimer & Hyperbranched Polymer Synthesis: Utilized as a multifunctional branching unit in the controlled synthesis of complex dendritic macromolecules.

Basic Information

Product Name	1,2-Benzenedicarboxylic Acid Bis[3-Hydroxy-2-(Hydroxymethyl)-2-Methylpropyl] Ester
CAS No.	72829-15-3
Molecular Formula	C20H30O8
Molecular Weight	398.45 g/mol
Synonyms	Bis(3-hydroxy-2-(hydroxymethyl)-2-methylpropyl) phthalate; 1,2-Benzenedicarboxylic acid, bis[3-hydroxy-2-(hydroxymethyl)-2-methylpropyl] ester; Phthalic acid, bis(3-hydroxy-2,2-dimethylpropyl) ester; 2,2-Bis(hydroxymethyl)propyl phthalate; Pentaerythritol diphthalate derivative; Hydroxyl-functional phthalate diester; CAS 72829-15-3
EINECS	Contact for details

Quality Control

Our production of 1,2-Benzenedicarboxylic Acid Bis[3-Hydroxy-2-(Hydroxymethyl)-2-Methylpropyl] Ester adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise customer specifications and industry benchmarks. Certificates of Analysis (COA) documenting purity, physical characteristics, and test results are provided with every shipment and are available for review upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperatures (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. The product may be hygroscopic; prolonged exposure to moisture should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Acid Value	≤ 1.0 mg KOH/g
Hydroxyl Value	Contact for details
Specific Gravity (20°C)	~1.20 - 1.25
Refractive Index (20°C)	~1.510 - 1.530

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