Description

5-Octadecenal is a high-purity, long-chain unsaturated aldehyde of significant interest in organic synthesis and fragrance chemistry. Its unique structure makes it a valuable intermediate for the production of flavor and fragrance compounds, as well as specialized surfactants and lipid analogs. This compound is essential for R&D and manufacturing in the flavor & fragrance, cosmetic, and fine chemical industries, where precise molecular building blocks are required.

Application

• Flavor and Fragrance Intermediate: A key precursor in the synthesis of long-chain aldehydes and alcohols that contribute to natural, waxy, and fatty olfactory notes in perfumes and flavorings.
• Organic Synthesis Building Block: Used in research and production for creating complex molecules, including pheromones, lipid derivatives, and other fine chemicals via reactions like oxidation, reduction, and olefin metathesis.
• Surfactant and Emollient Research: Serves as a starting material for developing novel non-ionic surfactants, emulsifiers, and conditioning agents for personal care and cosmetic formulations.
• Biochemical Studies: Utilized in lipid membrane research and as a standard or reagent in analytical chemistry to study lipid peroxidation and related biological processes.

Basic Information

Product Name	5-Octadecenal
CAS No.	56554-88-2
Molecular Formula	C₁₈H₃₄O
Molecular Weight	266.46 g/mol
Synonyms	trans-5-Octadecenal; (E)-5-Octadecenal; 5-Octadecen-1-al; 5-cis-Octadecenal; Octadec-5-enal; Aldehyde C-18:1 (δ5); 5-Octadecenaldehyde
EINECS	Contact for details

Quality Control

Our 5-Octadecenal is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. All materials are characterized using advanced analytical techniques including GC, HPLC, and NMR. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area at 2-8°C for long-term stability. This product is easily oxidized and light-sensitive.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Isomeric Purity (cis/trans)	Contact for details

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