Description

1,3-Benzenedicarboxylic Acid, Diisodecyl Ester is a high-purity diester plasticizer derived from isophthalic acid. This compound is valued for its excellent compatibility with a wide range of polymers, providing enhanced flexibility and durability to finished products. It is a critical raw material for manufacturers in the plastics, coatings, and specialty chemical industries seeking reliable performance and supply chain stability.

Application

• Primary plasticizer for PVC (polyvinyl chloride) and other polymer systems, improving low-temperature flexibility and processability.
• Key component in the formulation of specialty adhesives and sealants, contributing to long-term elasticity and adhesion.
• Functional additive in industrial and decorative coatings to enhance film formation and durability.
• Used as a processing aid and lubricant in polymer compounding to reduce melt viscosity and improve surface finish.
• Intermediate in the synthesis of more complex specialty esters and lubricants for demanding applications.
• Plasticizer for wire and cable insulation compounds, offering good electrical properties and heat stability.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Diisodecyl Ester
CAS No.	52284-35-2
Molecular Formula	C28H46O4
Molecular Weight	446.66 g/mol
Synonyms	Diisodecyl Isophthalate; DIDP (Isophthalate); Isophthalic Acid, Diisodecyl Ester; 1,3-Benzenedicarboxylic Acid Diisodecyl Ester; Diisodecyl Benzene-1,3-dicarboxylate; DIDIP; Plasticizer DIDIP; Jayflex DIDP (Isophthalate type); Uniplex 312
EINECS	257-818-5

Quality Control

Our 1,3-Benzenedicarboxylic Acid, Diisodecyl Ester is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, color, and acid value. Certificates of Analysis (COA) documenting these results 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, well-ventilated area away from incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize moisture absorption and contamination.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.5%
Acid Value	≤ 0.1 mg KOH/g
Color (APHA)	≤ 50
Moisture (KF)	≤ 0.1%
Specific Gravity (20°C)	0.960 - 0.970
Refractive Index (20°C)	1.482 - 1.488

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