Description

cis-11-Octadecenal is a high-purity, monounsaturated fatty aldehyde with the CAS number 4273-95-4. This compound serves as a critical intermediate and reference standard in the synthesis of complex organic molecules, particularly pheromones and flavor/fragrance components. It is essential for R&D and production teams in the flavor & fragrance, agrochemical, and fine chemical industries seeking reliable, high-quality building blocks.

Application

• Key intermediate in the synthesis of insect sex pheromones for agricultural pest management.
• Building block for the production of flavor and fragrance compounds, contributing to green, fatty, or waxy notes.
• Research chemical for studying lipid oxidation and aldehyde chemistry in academic and industrial laboratories.
• Starting material for the manufacture of specialty surfactants and lubricant additives.
• Reference standard for analytical methods in quality control and regulatory testing.
• Precursor in organic synthesis for pharmaceuticals and bioactive molecules.

Basic Information

Product Name	cis-11-Octadecenal
CAS No.	4273-95-4
Molecular Formula	C₁₈H₃₄O
Molecular Weight	266.46 g/mol
Synonyms	(Z)-11-Octadecenal; 11-cis-Octadecenal; (Z)-11-Octadecen-1-al; 11Z-Octadecenal; cis-δ¹¹-Octadecenal; (11Z)-Octadec-11-enal; 11-Octadecenal, (11Z)-; Octadec-11Z-enal
EINECS	Contact for details

Quality Control

Our cis-11-Octadecenal is produced under strict quality management systems. Every batch undergoes comprehensive analytical testing including GC, HPLC, and NMR to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Isomeric Purity (cis-isomer)	≥ 98.0%

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