Description

5-Octadecenoic Acid is a monounsaturated fatty acid of significant industrial and research interest. Its unique structure, featuring a double bond at the 5-position, makes it a valuable intermediate for synthesizing specialized oleochemicals and bioactive compounds. This high-purity material is essential for manufacturers and R&D laboratories in the pharmaceutical, cosmetic, and specialty chemical sectors seeking to develop novel formulations and advanced materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring specific fatty acid modifications.
• Cosmetic & Personal Care Ingredient: Serves as a key raw material for producing emollients, moisturizers, and specialty esters in high-end skincare formulations.
• Biochemical Research: Acts as a standard or substrate in lipidomics research, enzymatic studies, and metabolic pathway analysis.
• Lubricant & Surfactant Synthesis: A crucial building block for manufacturing biodegradable lubricants, corrosion inhibitors, and non-ionic surfactants.
• Polymer & Material Science: Utilized in creating bio-based polymers, plasticizers, and coatings to enhance material properties.
• Food & Nutrition Research: Employed as a reference compound in the analysis of dietary fats and the study of unsaturated fatty acid metabolism.

Basic Information

Product Name	5-Octadecenoic Acid
CAS No.	4682-40-0
Molecular Formula	C₁₈H₃₄O₂
Molecular Weight	282.46 g/mol
Synonyms	(5Z)-Octadec-5-enoic acid; cis-5-Octadecenoic Acid; 5-cis-Octadecenoic Acid; 5-Octadecylenic Acid; Petroselaidic Acid (trans isomer); C18:1 n-13 fatty acid; δ5-Octadecenoic acid
EINECS	225-124-8

Quality Control

Our 5-Octadecenoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopic methods, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting exact specifications are provided with every shipment. We support compliance with relevant regulatory frameworks for industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. This material is easily oxidized; prolonged exposure to air should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residue on Ignition	< 0.1%
Water Content (KF)	< 0.5%

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