Description

9(Z),11(E)-Octadecadienoic Acid is a conjugated linoleic acid (CLA) isomer, a naturally occurring fatty acid of significant industrial and research interest. Its unique conjugated double bond system makes it a valuable intermediate for synthesizing bioactive compounds and specialty chemicals. This high-purity material is essential for manufacturers and research institutions in the nutraceutical, pharmaceutical, and advanced chemical synthesis sectors.

Application

• Nutraceutical & Dietary Supplement Research: A key isomer studied for its potential metabolic and physiological effects in CLA blends.
• Pharmaceutical Intermediate: Serves as a chiral building block for the synthesis of more complex bioactive molecules and pro-drugs.
• Biochemical & Nutritional Research: Used as a standard or reagent in studies investigating lipid metabolism, cell signaling, and functional food development.
• Specialty Chemical Synthesis: Acts as a precursor for surfactants, lubricant additives, and other oleochemical derivatives where specific stereochemistry is required.
• Reference Standard: Employed in analytical laboratories for method development and calibration in gas chromatography (GC) and high-performance liquid chromatography (HPLC) for fatty acid analysis.

Basic Information

Product Name	9(Z),11(E)-Octadecadienoic Acid
CAS No.	2540-56-9
Molecular Formula	C18H32O2
Molecular Weight	280.45 g/mol
Synonyms	(9Z,11E)-Octadeca-9,11-dienoic Acid; (Z9,E11)-Linoleic Acid; 9c,11t-Octadecadienoic Acid; 9c,11t-CLA; rumenic acid; Bovinic Acid; (9Z,11E)-CLA; 9Z,11E-Linoleic Acid
EINECS	219-809-5

Quality Control

Every batch of our 9(Z),11(E)-Octadecadienoic Acid is produced and analyzed under strict quality management protocols. We ensure high chemical and isomeric purity through advanced chromatographic techniques. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and compliance with your research or manufacturing specifications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen) at 2-8°C to minimize oxidation and ensure long-term stability. Keep the container in a cool, dry, and well-ventilated area, away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Isomeric Purity (GC)	≥ 98.0% (9Z,11E isomer)
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents	Meets ICH guidelines

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