Description

Octenyl Succinic Anhydride (OSA) is a versatile, hydrophobic acid anhydride derived from succinic anhydride and 1-octene, widely recognized as a key chemical intermediate and food-grade starch modifier. Its primary commercial value lies in its ability to react with hydroxyl groups, imparting emulsifying properties and modifying the surface characteristics of materials. This makes it an essential component for manufacturers in the food, pharmaceutical, and specialty chemical industries seeking to create stable emulsions, controlled-release systems, and functional polymers.

Application

• Food Ingredient Production: As a key reagent for modifying food starch (OSA-modified starch), creating emulsifiers and stabilizers for beverages, sauces, and dairy products.
• Pharmaceutical Excipients: Used in the synthesis of enteric coatings for tablets and capsules to control drug release in the gastrointestinal tract.
• Paper Sizing Agent: Imparts hydrophobicity to paper and paperboard, improving water resistance and printability.
• Adhesive & Resin Intermediate: Serves as a building block for alkyd resins, epoxy curing agents, and specialty polymers requiring hydrophobic or reactive sites.
• Personal Care Formulations: Employed in the synthesis of emulsifiers and conditioning agents for creams, lotions, and hair care products.
• Textile Treatment: Used to modify fibers for improved water repellency and dyeability.

Basic Information

Product Name	Octenyl Succinic Anhydride
CAS No.	26680-54-6
Molecular Formula	C12H18O3
Molecular Weight	210.27 g/mol
Synonyms	OSA; 2-Octen-1-ylsuccinic anhydride; Octenylsuccinic acid anhydride; 1-Octenylsuccinic anhydride; 2-(1-Octenyl)succinic anhydride; Octenyl succinic anhydride; Food starch modifier; Starch sodium octenyl succinate precursor
EINECS	247-889-4

Quality Control

Our Octenyl Succinic Anhydride is manufactured under strict quality management systems. We offer grades suitable for food, pharmaceutical, and industrial applications, with specifications aligned to standards such as FCC (Food Chemicals Codex) and relevant pharmacopoeial guidelines. Every batch undergoes rigorous analytical testing, including assay, acid value, and color determination. Certificates of Analysis (COA) documenting purity and key parameters are available upon request to ensure compliance with your specific requirements.

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) 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	Clear, pale yellow to amber liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 97.0%
Acid Value	≤ 10 mg KOH/g
Color (Gardner)	≤ 5
Moisture (KF)	≤ 0.5%

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