Dioctyl Sebacate (DOS) Product Overview
Dioctyl Sebacate (DOS) is a high-performance sebacate ester produced by esterification of sebacic acid with 2-ethylhexanol. It is widely used as a synthetic lubricant base oil and premium plasticizer, particularly valued for its excellent low-temperature fluidity, thermal stability, and oxidative resistance.
DOS is typically selected for applications where extreme temperature performance, long service life, and consistent ester behavior are critical.
Manufacturing / Processing (High-Level)
Dioctyl Sebacate is manufactured through controlled esterification, followed by purification and finishing. The process is designed to:
- Achieve high ester purity
- Minimize residual free acid and alcohol
- Ensure stable viscosity and low pour point
Process parameters are tightly controlled to deliver repeatable batch-to-batch performance.
Raw Material Origin
The product is derived from sebacic acid obtained from castor oil–based intermediates, sourced from Indian castor seeds. Consistent raw material quality ensures predictable ester structure and lubricant performance.
In-House Quality Control & Consistency
Quality control focuses on viscosity profile, pour point, acidity, and moisture, which directly influence lubricant and plasticizer performance. Each batch is evaluated to maintain consistent behavior under extreme operating conditions.
Batch documentation supports traceability and long-term supply assurance.
Key Properties (Indicative)
- Appearance: Clear, colorless to pale yellow liquid
- Odor: Mild, characteristic
- Solubility: Insoluble in water; soluble in oils and organic solvents
- Functional behavior: Low-temperature fluidity, thermal and oxidative stability
Typical ranges are indicative and should be confirmed with the Certificate of Analysis (COA).
Typical Applications
Dioctyl Sebacate is used in:
- Synthetic Lubricants: aviation, automotive, industrial oils
- Greases: low-temperature and high-performance systems
- Plasticizers: specialty polymers and elastomers
- Hydraulic Fluids: extreme-temperature operation
- Specialty Chemicals: ester-based formulations
Application suitability depends on formulation design and operating environment.
Packaging Options
- HDPE drums
- MS drums
- IBCs
- Bulk tanker supply for high-volume buyers
Packaging is selected to ensure chemical stability, handling safety, and export readiness.
Bulk Supply & Export Readiness
Dioctyl Sebacate (DOS) is supplied in commercial and bulk quantities for domestic and international markets. The product is export-ready and supported with standard compliance documentation.
Supply is managed on an inquiry basis, aligned with buyer volume and shipment planning.
Quality Documentation
Available upon request:
- Certificate of Analysis (COA)
- Technical Data Sheet (TDS)
- Safety Data Sheet (SDS)
All documents are batch-specific to support audits and buyer verification.
Traceability & Batch Control
Each production lot carries a unique batch identification, enabling backward traceability and consistent quality across repeat orders.
Who Should Use This Product
- Lubricant manufacturers requiring low-temperature performance
- Buyers formulating synthetic ester-based oils
- Industrial users seeking long-life, stable lubricants
When to Use / When Not to Use
Use when:
- Extreme low-temperature fluidity is required
- Thermal and oxidative stability are critical
Not recommended when:
- Water-soluble esters are required
- Very low-cost plasticizers are acceptable substitutes
Sample → Trial → Commercial Supply
Samples can be provided for laboratory or pilot-scale evaluation. Commercial supply follows successful trials and mutual specification confirmation.
Frequently Asked Questions
Q1. How does DOS differ from DBS?
DOS has longer alkyl chains, providing lower pour point and better low-temperature performance than DBS.
Q2. Is DOS suitable for aviation lubricants?
Yes, it is commonly used in aviation and aerospace lubricant formulations.
Q3. Is export supply available?
Yes, it is regularly supplied to international markets with standard documentation.
Q4. Is long-term supply possible?
Yes, with planned volumes and agreed specifications.
Long-Term Supply Perspective
Dioctyl Sebacate (DOS) is positioned as a premium, performance-critical ester, emphasizing batch consistency, documentation readiness, and predictable behavior under extreme conditions. It supports long-term strategic sourcing rather than spot purchases.
