Description

Dioctyl 2,2,4-Trimethyladipate is a high-performance, branched-chain diester plasticizer and solvent. It is valued for its excellent low-temperature flexibility, low volatility, and resistance to extraction by water and oils, making it a superior alternative to traditional phthalates in many demanding applications. This specialty chemical is essential for formulators in the polymer, lubricant, and specialty chemical industries seeking enhanced product durability and performance.

Application

• Primary plasticizer for polyvinyl chloride (PVC), polyvinyl butyral (PVB), and other polymers requiring excellent low-temperature properties.
• Key component in high-performance lubricants and synthetic lubricant base oils.
• Solvent and carrier fluid in specialty inks, coatings, and adhesives.
• Functional fluid in hydraulic systems and heat transfer applications.
• Plasticizer for synthetic rubbers and elastomers to improve flexibility and processability.
• Additive in sealants and caulks to enhance weatherability and longevity.
• Used in the formulation of gaskets, hoses, and other automotive components.
• Intermediate in the synthesis of other specialty esters and chemical products.

Basic Information

Product Name	Dioctyl 2,2,4-Trimethyladipate
CAS No.	68975-81-5
Molecular Formula	C24H46O4
Molecular Weight	398.62 g/mol
Synonyms	Bis(2-ethylhexyl) 2,2,4-trimethyladipate; Di(2-ethylhexyl) 2,2,4-trimethyladipate; 2,2,4-Trimethyladipic Acid Dioctyl Ester; Adipic Acid, 2,2,4-Trimethyl-, Dioctyl Ester; TOTM-D (variant); Ester Plasticizer TOTM-A; DOA Alternative (Low Temp); Octyl Trimethyladipate
EINECS	Contact for details

Quality Control

Our Dioctyl 2,2,4-Trimethyladipate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, color, acidity, and other critical parameters. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee consistency and compliance with your formulation requirements.

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 bases 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
Assay (GC)	≥ 98.0 %
Color (APHA)	≤ 50
Acidity (as Adipic Acid)	≤ 0.05 %
Water Content (KF)	≤ 0.10 %
Refractive Index (20°C)	1.444 - 1.448
Density (20°C)	0.925 - 0.935 g/mL
Flash Point	> 200 °C

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