Description

1,2,3,6-Tetrahydrophthalic Acid Diisodecyl Ester is a specialized diester plasticizer derived from tetrahydrophthalic acid and branched isodecyl alcohol. This compound is valued for its excellent compatibility with a wide range of polymers, offering enhanced flexibility and low-temperature performance. It is primarily utilized in the formulation of high-performance PVC, synthetic rubbers, and specialty adhesives where durability and processing stability are critical.

Application

• Primary plasticizer for flexible Polyvinyl Chloride (PVC) compounds, including wire & cable insulation, flooring, and automotive interiors.
• Co-plasticizer in nitrile rubber (NBR) and other synthetic elastomers to improve low-temperature flexibility and elongation.
• Key component in the production of specialty adhesives and sealants, contributing to improved tack and peel strength.
• Modifier for polymer resins in coatings and inks to enhance film formation and substrate adhesion.
• Used in the formulation of gaskets, hoses, and industrial belts requiring resistance to extraction and migration.
• Functional fluid or additive in lubricants and hydraulic fluids for its thermal stability and viscosity properties.

Basic Information

Product Name	1,2,3,6-Tetrahydrophthalic Acid Diisodecyl Ester
CAS No.	87826-26-4
Molecular Formula	C28H50O4
Molecular Weight	450.70 g/mol
Synonyms	Diisodecyl 1,2,3,6-tetrahydrophthalate; Diisodecyl tetrahydrophthalate; DIDTP; Tetrahydrophthalic acid diisodecyl ester; 1-Cyclohexene-1,2-dicarboxylic acid, diisodecyl ester; Plasticizer DIDTP; Jayflex® DIDTP; Palatinol® DIDTP
EINECS	Contact for details

Quality Control

Our 1,2,3,6-Tetrahydrophthalic Acid Diisodecyl Ester is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistency and meets defined specifications for purity, color, and key physical properties. A comprehensive Certificate of Analysis (COA) documenting assay, acid value, moisture content, and specific gravity is available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, heat sources, and open flame.

Specification

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