Description

Dioctyl Terephthalate (DOTP) is a high-performance, non-phthalate plasticizer derived from terephthalic acid, offering superior stability and compatibility with a wide range of polymers. Its primary value lies in providing excellent low-temperature flexibility, low volatility, and enhanced electrical properties to polymer compounds. This versatile chemical is essential for manufacturers in the plastics, wire & cable, and automotive industries seeking safer, more durable alternatives to traditional phthalate plasticizers.

Application

• Primary Plasticizer for PVC: Used in the production of flexible PVC products such as cables, hoses, flooring, and synthetic leather, offering low migration and good gelling properties.
• Wire and Cable Insulation: Imparts excellent electrical insulation properties and long-term thermal stability to PVC and other polymer jacketing.
• Automotive Interior Components: Employed in dashboards, door panels, and seat coverings due to its low fogging characteristics and resistance to extraction by oils and greases.
• Consumer Goods and Toys: A key ingredient in non-phthalate formulations for items requiring compliance with stringent safety regulations (e.g., REACH, CPSIA).
• Adhesives and Sealants: Acts as a plasticizer to improve flexibility, adhesion, and durability in various polymer-based adhesive systems.
• Medical Devices and Tubing: Suitable for applications requiring biocompatibility and low extractability in flexible PVC formulations.
• Coated Fabrics and Films: Provides softness and durability to synthetic fabrics and polymer films.

Basic Information

Product Name	Dioctyl Terephthalate
CAS No.	6422-86-2
Molecular Formula	C24H38O4
Molecular Weight	390.56 g/mol
Synonyms	DOTP; Bis(2-ethylhexyl) terephthalate; 1,4-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester; DEHTP; Dioctyl terephthalate; Terephthalic acid, dioctyl ester; Plasticizer DOTP; Octyl terephthalate
EINECS	229-176-9

Quality Control

Our Dioctyl Terephthalate is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Production adheres to relevant industry standards, and each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, color, acidity, and moisture content. We support our global clients with documentation for regulatory compliance, including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Recommended storage temperature is between 15°C and 25°C. 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
Assay (GC)	≥ 99.0%
Color (APHA)	≤ 30
Acidity (as Terephthalic Acid)	≤ 0.01%
Moisture (KF)	≤ 0.05%
Specific Gravity (20/20°C)	0.983 - 0.987
Refractive Index (20°C)	1.486 - 1.490

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