Description

cis-11-Eicosenoic Acid is a monounsaturated fatty acid characterized by a cis double bond at the 11th carbon of its 20-carbon chain. This specific isomer is valued for its role as a chemical intermediate and a building block for synthesizing specialized lipids and oleochemicals. It is primarily sought by manufacturers in the pharmaceutical, cosmetic, and specialty chemical industries for research and production applications.

Application

• Pharmaceutical Intermediate: Used in the synthesis of bioactive lipids, prodrugs, and other specialized organic compounds.
• Cosmetic Ingredient: Serves as a base material for producing esters and emollients in skincare and personal care formulations.
• Chemical Research: Acts as a standard or reagent in lipidomics, metabolic studies, and organic synthesis research.
• Lubricant & Surfactant Synthesis: A key raw material for manufacturing high-performance oleochemical-based lubricants and surfactants.
• Polymer Modification: Utilized to introduce fatty acid chains into polymers to alter flexibility and hydrophobicity.

Basic Information

Product Name	cis-11-Eicosenoic Acid
CAS No.	5561-99-9
Molecular Formula	C20H38O2
Molecular Weight	310.52 g/mol
Synonyms	11-Eicosenoic Acid; (Z)-11-Eicosenoic Acid; 11-cis-Eicosenoic Acid; Gondoic Acid (cis-11 isomer); 11Z-Eicosenoic Acid; cis-11-Icosenoic Acid; (11Z)-Icos-11-enoic Acid
EINECS	226-925-8

Quality Control

Our cis-11-Eicosenoic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Due to its property of being easily oxidized, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C). Keep the container tightly sealed in a cool, dry, and well-ventilated place.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 95.0%
Acid Value	Contact for details
Iodine Value	Contact for details
Peroxide Value	≤ 5.0 meq/kg
Water Content (KF)	≤ 0.5%

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