Description

3-Undecenoic Acid is a versatile medium-chain unsaturated fatty acid with the CAS registry number 4189-01-9. This compound serves as a valuable building block in organic synthesis and fine chemical manufacturing due to its reactive terminal alkene and carboxylic acid functional groups. It is particularly sought after by industries involved in fragrance and flavor creation, pharmaceutical intermediates, and polymer research for its unique structural properties.

Application

• Fragrance and Flavor Intermediates: Used in the synthesis of musk-like aroma chemicals and other specialty fragrance components.
• Pharmaceutical Synthesis: Acts as a key chiral intermediate or building block for active pharmaceutical ingredients (APIs) and bioactive molecules.
• Polymer Chemistry: Employed in the production of specialty polymers, coatings, and resins, where its unsaturated chain can be used for cross-linking or modification.
• Lubricant and Surfactant Additives: Serves as a precursor for synthesizing esters and other derivatives used in high-performance lubricants and surfactants.
• Agrochemical Intermediates: Utilized in the development of novel pesticides and plant growth regulators.
• Organic Synthesis Reagent: A valuable reagent for carbon chain elongation and the introduction of functional groups in complex molecule assembly.

Basic Information

Product Name	3-Undecenoic Acid
CAS No.	4189-01-9
Molecular Formula	C₁₁H₂₀O₂
Molecular Weight	184.28 g/mol
Synonyms	3-Undecylenic Acid; Undec-3-enoic Acid; (E)-3-Undecenoic Acid; 3-Hendecenoic Acid; 3-Undecenoic Acid (mixed isomers); 3-Undecenic Acid; 10-Undecenoic Acid, 3-isomer; 3-Undecen-1-oic Acid
EINECS	224-067-6

Quality Control

Our 3-Undecenoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to ensure it meets the required specifications for your application. A Certificate of Analysis (COA) detailing purity, physical properties, and 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 room temperature (15-25°C). This product is easily oxidized; for long-term storage, it is recommended to keep it under an inert atmosphere such as nitrogen.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Acid Value	Contact for details
Specific Gravity (20°C)	~0.91 g/mL
Refractive Index (20°C)	~1.45

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