Description

n-Octylsuccinic Anhydride is a versatile, high-purity organic acid anhydride used as a key intermediate in the synthesis of specialty chemicals. Its primary commercial value lies in its ability to act as a hydrophobic alkyl chain donor and a reactive site for esterification and amidation reactions. This product is essential for manufacturers in the polymer, pharmaceutical, and agrochemical industries seeking to modify material properties or create novel active ingredients.

Application

• Polymer Modification: As a chain extender or cross-linking agent for epoxy resins, polyesters, and polyamides to enhance flexibility, hydrophobicity, and thermal stability.
• Surfactant Synthesis: A key raw material for producing high-performance, biodegradable surfactants and emulsifiers for industrial and personal care applications.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring lipophilic characteristics.
• Agrochemicals: Intermediate in the production of herbicides, fungicides, and plant growth regulators that benefit from its hydrophobic octyl chain.
• Corrosion Inhibitors: Component in formulations for metalworking fluids and coatings to provide surface protection.
• Adhesives & Sealants: Modifier to improve the adhesion, water resistance, and durability of various adhesive systems.
• Lubricant Additives: Used to synthesize ester-based additives that improve lubricity and reduce friction in synthetic lubricants.
• Research & Development: A valuable building block in organic synthesis for academic and industrial R&D laboratories.

Basic Information

Product Name	n-Octylsuccinic Anhydride
CAS No.	4200-92-4
Molecular Formula	C12H20O3
Molecular Weight	212.29 g/mol
Synonyms	OSA; Octylsuccinic Anhydride; 2-(Heptylcarbonyl)benzoic Acid Anhydride; 1-Octylsuccinic Anhydride; Succinic Anhydride, Octyl-; 2-Octyl-1,3-dioxolane-2,4-dione; NSC 522275; 4-Octyl-4-oxetan-2-one
EINECS	224-120-0

Quality Control

Our n-Octylsuccinic Anhydride is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including GC/HPLC for purity and identity confirmation, to ensure it meets precise specifications for industrial and fine chemical applications. A Certificate of Analysis (COA) detailing batch-specific results is provided with each shipment to guarantee traceability and compliance.

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 material is hygroscopic (moisture-sensitive) and should be kept under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %
Acid Value	≤ 5.0 mg KOH/g
Refractive Index (n20D)	1.455 - 1.465
Specific Gravity (20°C)	0.98 - 1.02

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