Description

n-Hexadecylsuccinic Anhydride is a high-purity, long-chain aliphatic anhydride derived from succinic acid. This specialty chemical is valued for its hydrophobic character and reactivity, serving as a key intermediate in the synthesis of advanced polymers, resins, and surface-active agents. It is primarily sought by manufacturers in the coatings, adhesives, and specialty chemical industries for developing products with enhanced durability, water resistance, and specific functional properties.

Application

• Polymer & Resin Modification: Used as a curing agent or cross-linking agent in epoxy and alkyd resin formulations to impart flexibility, hydrophobicity, and chemical resistance.
• Corrosion Inhibitors: Acts as a precursor for synthesizing succinimide-type corrosion inhibitors used in lubricant and fuel additive packages.
• Surface Coatings: Employed in the production of high-performance industrial and marine coatings to improve adhesion and moisture barrier properties.
• Adhesives & Sealants: Functions as a reactive intermediate to enhance the tack, strength, and environmental stability of polyamide and other hot-melt adhesives.
• Lubricant Additives: Serves as a chemical building block for manufacturing dispersants and anti-wear agents in engine and industrial oils.
• Paper Sizing Agents: Utilized in the synthesis of alkyl ketene dimer (AKD) analogs for internal sizing to increase paper's water resistance.
• Pharmaceutical Intermediates: May be used in the synthesis of certain active pharmaceutical ingredients (APIs) or prodrugs requiring lipophilic side chains.
• Research & Development: A valuable reagent in organic synthesis for introducing long alkyl chains into molecules, facilitating academic and industrial R&D.

Basic Information

Product Name	n-Hexadecylsuccinic Anhydride
CAS No.	4200-91-3
Molecular Formula	C₂₀H₃₆O₃
Molecular Weight	324.50 g/mol
Synonyms	Hexadecylsuccinic Anhydride; C16 Succinic Anhydride; n-Hexadecylsuccinic Acid Anhydride; Palmitoylsuccinic Anhydride; 2-(Pentadecylcarbonyl)succinic Anhydride; 2-Hexadecyl-1,3-dioxolane-2,4-dione; 1-Hexadecylsuccinic Anhydride; ASAn-16
EINECS	224-112-9

Quality Control

Our n-Hexadecylsuccinic Anhydride is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, identification, and impurity profile analysis, to ensure it meets high-purity standards suitable for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing specific test results is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); therefore, containers must be kept tightly sealed to prevent contact with atmospheric moisture, which can lead to hydrolysis. Keep away from strong bases, oxidizing agents, and sources of heat.

Specification

Item	Specification
Appearance	White to off-white waxy solid or flakes
Identification (IR)	Conforms to structure
Assay (Anhydride Content)	≥ 98.0 %
Melting Point	60 - 70 °C
Acid Value	≤ 5.0 mg KOH/g
Moisture (Karl Fischer)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 10 ppm

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