Description

Dioctadecyl Fumarate is a high-molecular-weight diester derived from fumaric acid and stearyl alcohol. This compound serves as a highly effective internal lubricant and plasticizer, prized for its excellent compatibility with various polymer matrices and its ability to reduce melt viscosity. It is a critical performance additive for manufacturers in the plastics, coatings, and synthetic lubricants industries seeking to enhance processing efficiency and final product properties.

Application

• Primary internal lubricant and processing aid for PVC (rigid and flexible), polyolefins (PP, PE), and engineering plastics.
• Plasticizer and flow promoter in masterbatch and color concentrate production.
• Viscosity modifier and anti-sticking agent in hot-melt adhesives and sealants.
• Additive for improving gloss and surface finish in industrial and decorative coatings.
• Raw material for synthesizing specialty esters and surfactants.
• Component in synthetic lubricant formulations and release agents.
• Additive for printing inks to improve rub resistance and laydown.
• Intermediate in the production of polymer stabilizers and other functional additives.

Basic Information

Product Name	Dioctadecyl Fumarate
CAS No.	7283-68-3
Molecular Formula	C₄₀H₇₆O₄
Molecular Weight	621.0 g/mol
Synonyms	Stearyl Fumarate; Di-n-octadecyl Fumarate; Distearyl Fumarate; Fumaric Acid Dioctadecyl Ester; Octadecyl Fumarate; 2-Butenedioic Acid (E)-, Dioctadecyl Ester; (E)-Dioctadecyl But-2-enedioate
EINECS	230-708-6

Quality Control

Our Dioctadecyl Fumarate is manufactured under a strict quality management system. Every batch is analyzed to ensure it meets precise chemical and physical specifications for consistent performance. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key parameters is provided with each shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white waxy solid / Flakes
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 98.0 %
Acid Value	≤ 1.0 mg KOH/g
Iodine Value	≤ 2.0 g I₂/100g
Melting Point	58 - 62 °C
Color (APHA)	≤ 50
Moisture (KF)	≤ 0.2 %

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