Description

Hexanedioic Acid, Di-C8-10-Branched Alkyl Esters, C9-Rich is a high-purity, synthetic diester derived from adipic acid and a defined mixture of branched C8-C10 alcohols, with a predominant C9 chain length. This specific molecular architecture provides a unique combination of low-temperature fluidity, thermal stability, and excellent solvency, making it a superior performance additive and base fluid. It is engineered for demanding industrial applications where consistent quality and reliable performance are critical. Key industries that utilize this advanced ester include lubricants, plastics, and specialty chemical manufacturing.

Application

• Synthetic Lubricant Base Stock & Additive: Used as a high-performance base oil or viscosity modifier in synthetic engine oils, compressor oils, and gear oils, offering excellent low-temperature properties and oxidation stability.
• Plasticizer for Polymers: Acts as a secondary plasticizer and processing aid in PVC, polyurethanes, and other polymer systems, enhancing flexibility and low-temperature performance.
• Functional Fluid Formulation: A key component in the production of high-grade hydraulic fluids, heat transfer fluids, and dielectric fluids.
• Industrial Solvent & Carrier: Employed as a low-volatility, high-solvency carrier for pigments, dyes, and additives in coatings, inks, and adhesive formulations.
• Metalworking Fluid Additive: Provides lubricity and surface wetting properties in synthetic and semi-synthetic metalworking fluids and drawing compounds.
• Cosmetic & Personal Care Ingredient: Functions as an emollient and skin-conditioning agent in high-end cosmetic formulations, valued for its non-greasy feel and stability.

Basic Information

Product Name	Hexanedioic Acid, Di-C8-10-Branched Alkyl Esters, C9-Rich
CAS No.	90411-51-1
Molecular Formula	Typically C22H42O4 to C26H50O4 (Isomeric mixture)
Molecular Weight	~ 370 - 426 g/mol (Average)
Synonyms	Adipic Acid, Diisodecyl Ester (DIDA) Isomer Blend; Di(C8-10) Alkyl Adipate, C9-rich; Branched C9-Rich Dialkyl Adipate; Bis(isodecyl) Adipate (predominant); Polyol Ester; Synthetic Ester Oil; DID Adipate; Light-colored Ester Fluid
EINECS	Contact for details

Quality Control

Our Hexanedioic Acid, Di-C8-10-Branched Alkyl Esters, C9-Rich is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for composition, purity, and performance characteristics. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as ester content, acid value, hydroxyl value, and color. Our commitment to consistent quality and supply chain reliability makes us a trusted partner for global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Keep away from strong oxidizing agents, strong acids, and strong bases. For long-term storage, consider under an inert atmosphere (nitrogen blanket) to maintain optimal purity and prevent oxidation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0% (as diester)
Acid Value	≤ 0.1 mg KOH/g
Hydroxyl Value	≤ 5.0 mg KOH/g
Color (APHA)	≤ 50
Water Content (KF)	≤ 0.05% w/w
Viscosity @ 40°C	~ 15 - 25 cSt
Pour Point	≤ -50°C

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