Description

2-Octadecenyl Succinic Anhydride is a high-purity, long-chain alkenyl succinic anhydride (ASA) derivative, a critical intermediate in the synthesis of advanced polymers and surface-active agents. Its primary commercial value lies in its ability to act as a versatile hydrophobic modifier and reactive intermediate, imparting water resistance and enhancing adhesion properties in final formulations. This product is essential for manufacturers in the polymer, coatings, and specialty chemical industries seeking to develop high-performance materials with tailored surface characteristics.

Application

• Paper Sizing Agent: A key hydrophobic component in the production of alkyl ketene dimer (AKD) and ASA-based sizing agents for paper and cardboard, providing excellent water resistance.
• Polymer Modification: Used as a reactive intermediate for the synthesis of polyimide resins, alkyd resins, and other high-performance polymers, improving flexibility and thermal stability.
• Corrosion Inhibitor Intermediate: Serves as a precursor in formulating oil-soluble corrosion inhibitors for lubricants and fuel additives.
• Epoxy Curing Agent: Acts as a latent curing agent for epoxy resin systems, particularly where enhanced moisture resistance and low-temperature curing are required.
• Surfactant & Emulsifier Synthesis: A building block for producing specialty surfactants and emulsifiers with unique hydrophobic-lipophilic balance (HLB) properties.
• Adhesive & Sealant Formulation: Imparts improved adhesion to low-surface-energy substrates and enhances the water resistance of adhesives and sealants.

Basic Information

Product Name	2-Octadecenyl Succinic Anhydride
CAS No.	67066-88-0
Molecular Formula	C22H38O3
Molecular Weight	350.54 g/mol
Synonyms	Octadecenylsuccinic Anhydride; OSA; 2-(Octadec-9-en-1-yl)succinic anhydride; Alkenyl (C18) Succinic Anhydride; AS-18; (9Z)-2-(9-Octadecenyl)succinic anhydride; 2-(9-Octadecenyl)-2,5-furandione; 2-(cis-9-Octadecenyl)succinic anhydride
EINECS	Contact for details

Quality Control

Our 2-Octadecenyl Succinic Anhydride is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, acid value, and saponification value determination, to ensure consistency and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical-chemical 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). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to minimize hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid
Identification (IR)	Conforms
Assay (Anhydride Content)	≥ 95.0 %
Acid Value	≤ 10 mg KOH/g
Saponification Value	285 - 315 mg KOH/g
Color (Gardner)	≤ 6
Moisture (Karl Fischer)	≤ 0.5 %

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