Description

Dioctadecyl Maleate is a high-molecular-weight diester derived from maleic acid and stearyl alcohol. This compound serves as a versatile chemical intermediate and functional additive, valued for its ability to modify polymer properties and act as a lubricant or plasticizer. It is particularly sought after by manufacturers in the plastics, coatings, and specialty chemical industries seeking to enhance material performance and processing characteristics.

Application

• As a plasticizer and internal lubricant for PVC and other polymers to improve flexibility and processability.
• As a key chemical intermediate in the synthesis of specialty surfactants and emulsifiers.
• As a viscosity modifier and flow aid in coatings, inks, and adhesive formulations.
• As a release agent and mold lubricant in rubber and plastic manufacturing processes.
• In the production of waxes and polishes to impart gloss and water repellency.
• As a potential additive for synthetic fibers to improve spin finish and anti-static properties.

Basic Information

Product Name	Dioctadecyl Maleate
CAS No.	7516-70-3
Molecular Formula	C₄₀H₇₆O₄
Molecular Weight	621.03 g/mol
Synonyms	Distearyl Maleate; Octadecyl Maleate; Di-n-octadecyl Maleate; Maleic Acid Dioctadecyl Ester; Dioctadecyl (Z)-Butenedioate; Stearyl Maleate; DSM (abbrev.); 2-Butenedioic Acid (2Z)-, 1,4-Dioctadecyl Ester
EINECS	231-377-1

Quality Control

Our Dioctadecyl Maleate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, identity, and key parameters is provided with every shipment to guarantee consistency and traceability for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and 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 or HPLC)	≥ 98.0%
Acid Value	≤ 1.0 mg KOH/g
Melting Point	55 - 65 °C
Color (APHA)	≤ 50

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