Description

2-Undecenoic Acid is a versatile medium-chain unsaturated fatty acid with significant industrial and research utility. Its unique structure, featuring a terminal double bond, makes it a valuable intermediate for synthesizing flavors, fragrances, and specialty polymers. This compound is essential for manufacturers and R&D teams in the chemical, flavor & fragrance, and pharmaceutical sectors seeking high-purity building blocks.

Application

• Flavor and Fragrance Intermediate: A key precursor in the synthesis of lactones and other aroma chemicals, contributing to fruity and creamy notes.
• Polymer Chemistry: Used as a monomer or co-monomer in the production of specialty polymers, resins, and coatings, imparting flexibility and specific functional properties.
• Organic Synthesis: Serves as a versatile building block for synthesizing various fine chemicals, pharmaceuticals, and agrochemicals due to its reactive carboxylic acid and alkene groups.
• Research & Development: Employed in biochemical and microbiological studies, particularly in research related to antifungal agents and microbial metabolism.
• Lubricant and Surfactant Additive: Can be derivatized to produce esters or salts used as additives in lubricants and surfactants.

Basic Information

Product Name	2-Undecenoic Acid
CAS No.	4189-02-0
Molecular Formula	C₁₁H₂₀O₂
Molecular Weight	184.28 g/mol
Synonyms	2-Undecylenic Acid; Undec-2-enoic Acid; (E)-2-Undecenoic Acid; 10-Hendecenoic Acid; 2-Undecenoic Acid (mixed isomers); NSC 403697; 2-Undecenic Acid; 2-Hendecenoic Acid
EINECS	224-057-8

Quality Control

Our 2-Undecenoic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance with your 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). As the material is easily oxidized, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Acid Value	Contact for details
Refractive Index (n20/D)	Contact for details
Specific Gravity (20°C)	Contact for details

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