Description

Diisooctadecyl Adipate is a high-molecular-weight diester plasticizer derived from adipic acid and isooctadecyl alcohol. This compound is valued for its excellent permanence, low volatility, and outstanding compatibility with a wide range of polymers, providing long-lasting flexibility and performance. It is a critical material for formulators and manufacturers in industries requiring durable plasticized products, such as high-performance PVC, specialty elastomers, and synthetic lubricants.

Application

• Primary plasticizer for high-temperature and durable PVC applications, including wire and cable insulation, automotive interiors, and coated fabrics.
• Key component in the formulation of synthetic lubricants and greases, offering excellent thermal stability and low-temperature properties.
• Functional additive in elastomers and sealants to enhance flexibility, weatherability, and longevity.
• Used as a processing aid and secondary plasticizer in polymer blends to improve compatibility and reduce compound viscosity.
• Base fluid for high-performance metalworking fluids and industrial lubricants.
• Plasticizer for specialty adhesives and coatings requiring resistance to extraction and migration.

Basic Information

Product Name	Diisooctadecyl Adipate
CAS No.	62479-36-1
Molecular Formula	C42H82O4
Molecular Weight	651.1 g/mol
Synonyms	Bis(isooctadecyl) adipate; Diisodecyl adipate (mixed isomer); Adipic acid, diisooctadecyl ester; Adipic acid bis(isooctadecyl) ester; DIOA (general abbreviation); Plasticizer DIOA; Isooctadecyl adipate
EINECS	263-090-9

Quality Control

Our Diisooctadecyl Adipate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. The product is tested against rigorous internal specifications that monitor key parameters such as ester content, acid value, color, and moisture. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing all test results. We support compliance with relevant global regulatory frameworks, including REACH.

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. Keep containers tightly sealed when not in use to minimize moisture absorption and contamination.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Acid Value	≤ 0.1 mg KOH/g
Moisture (KF)	≤ 0.1%
Color (APHA)	≤ 50
Specific Gravity (20°C)	0.915 - 0.925
Refractive Index (20°C)	1.450 - 1.455

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