Description

Diisooctyl Terephthalate is a high-purity diester plasticizer derived from terephthalic acid and isooctyl alcohol. This compound is valued for its excellent solvating power, low volatility, and compatibility with a wide range of polymers, making it a versatile performance additive. It is primarily sought by manufacturers in the plastics, coatings, and specialty chemical industries seeking to enhance the flexibility, durability, and processing characteristics of their formulations.

Application

• Primary plasticizer for PVC and other vinyl polymers to improve flexibility and low-temperature performance.
• Functional additive in adhesives and sealants to modify viscosity and enhance adhesion properties.
• Coalescing agent and film-forming aid in industrial and architectural coating systems.
• Processing aid and lubricant in the manufacture of synthetic rubbers and elastomers.
• Solvent and carrier fluid in specialty chemical formulations and industrial cleaning products.
• Component in high-performance lubricants and greases for specific industrial applications.

Basic Information

Product Name	Diisooctyl Terephthalate
CAS No.	27937-24-2
Molecular Formula	C24H38O4
Molecular Weight	390.56 g/mol
Synonyms	DIOTP; Bis(6-methylheptyl) benzene-1,4-dicarboxylate; Bis(6-methylheptyl) terephthalate; Terephthalic acid, diisooctyl ester; 1,4-Benzenedicarboxylic acid, bis(6-methylheptyl) ester; Isooctyl terephthalate; Plasticizer DIOTP
EINECS	Contact for details

Quality Control

Our Diisooctyl Terephthalate is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including assay, identity confirmation, and impurity profiling. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment and is available upon request.

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 reference spectrum
Assay (GC)	≥ 98.5%
Acidity (as Terephthalic Acid)	≤ 0.05%
Water Content (KF)	≤ 0.1%
Color (APHA)	≤ 50
Specific Gravity (20°C)	0.970 - 0.980
Refractive Index (20°C)	1.485 - 1.495

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