Description

3-Icosylsuccinic Anhydride is a high-molecular-weight alkenyl succinic anhydride (ASA) derivative, a critical intermediate in the synthesis of specialized polymers and surface-active agents. Its long alkyl chain imparts unique hydrophobic and compatibilizing properties, making it valuable for modifying material characteristics. This compound is essential for manufacturers in the polymer, coatings, and specialty chemical industries seeking to enhance product performance through tailored chemical functionality.

Application

• Polymer Modification: Acts as a key monomer or curing agent in the synthesis of polyimides, epoxy resins, and alkyd resins, improving flexibility and hydrophobicity.
• Surface Coatings & Inks: Used as a building block for high-performance coatings, providing enhanced adhesion, water resistance, and durability.
• Paper Sizing Agents: Serves as a hydrophobic sizing agent precursor in paper manufacturing to control liquid absorption.
• Lubricant & Fuel Additives: Employed as an intermediate in the production of ashless dispersants and corrosion inhibitors for industrial lubricants and fuels.
• Adhesives & Sealants: Functions as a reactive modifier to improve the tack, peel strength, and environmental resistance of adhesive formulations.
• Specialty Surfactants: A precursor for synthesizing surfactants and emulsifiers with specific hydrophobic-lipophilic balance (HLB) values.

Basic Information

Product Name	3-Icosylsuccinic Anhydride
CAS No.	53520-66-4
Molecular Formula	C₂₄H₄₄O₃
Molecular Weight	380.61 g/mol
Synonyms	3-Eicosylsuccinic Anhydride; 2-(Icos-1-en-1-yl)succinic Anhydride; 2-(1-Eicosenyl)succinic Anhydride; Alkenyl (C20) Succinic Anhydride; ASA (C20); C20-Alkenyl Succinic Anhydride; Docosenylsuccinic Anhydride (related); Long-chain Alkenyl Succinic Anhydride
EINECS	Contact for details

Quality Control

Our 3-Icosylsuccinic Anhydride is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical parameters is provided with every shipment to guarantee traceability and support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid
Identification (IR)	Conforms to structure
Assay (Anhydride Content)	≥ 95.0%
Acid Value	≤ 10.0 mg KOH/g
Saponification Value	280 - 310 mg KOH/g
Water Content (KF)	≤ 0.5%
Viscosity (at 25°C)	Reported on COA

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