Description

3-Octadecenoic Acid Methyl Ester is a high-purity fatty acid methyl ester (FAME) derivative, a key intermediate in fine chemical synthesis. Its value lies in providing a defined, unsaturated C18 chain for the production of specialized surfactants, lubricants, and cosmetic ingredients. This compound is essential for manufacturers in the personal care, oleochemical, and pharmaceutical industries seeking to develop products with specific hydrophobic and emollient properties.

Application

• Surfactant & Emulsifier Synthesis: A crucial building block for producing non-ionic and anionic surfactants used in detergents and industrial cleaners.
• Personal Care & Cosmetic Formulations: Serves as an emollient and conditioning agent in creams, lotions, and hair care products.
• Lubricant & Plasticizer Additive: Used as a bio-based intermediate for synthesizing ester-based lubricants and plasticizers.
• Pharmaceutical Intermediates: Acts as a chiral synthon or a lipophilic moiety in the synthesis of active pharmaceutical ingredients (APIs).
• Research & Development: A standard for analytical methods and a reagent in organic chemistry research focused on lipid chemistry.
• Polymer Modification: Employed to introduce long alkyl chains into polymers to modify flexibility and hydrophobicity.

Basic Information

Product Name	3-Octadecenoic Acid Methyl Ester
CAS No.	56599-33-8
Molecular Formula	C₁₉H₃₆O₂
Molecular Weight	296.49 g/mol
Synonyms	Methyl 3-Octadecenoate; Methyl (Z)-3-Octadecenoate; 3-Octadecenoic Acid, Methyl Ester; Methyl cis-3-Octadecenoate; 3-Octadecenoic Acid Methyl Ester; Methyl 3-Octadecenoic Acid Ester; C18:1 n-15 Methyl Ester; Vaccenic Acid Methyl Ester Isomer
EINECS	Contact for details

Quality Control

Our 3-Octadecenoic Acid Methyl Ester is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including chromatography (GC/HPLC) and spectroscopic methods, to ensure identity, purity, and consistency. Certificates of Analysis (COA) with detailed batch-specific results are provided to guarantee compliance with your technical requirements.

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 place at room temperature (15-25°C). Due to its easily oxidized nature, minimize exposure to air during handling and use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 95.0%
Acid Value	≤ 1.0 mg KOH/g
Iodine Value	Contact for details
Peroxide Value	≤ 5.0 meq/kg
Water Content (KF)	≤ 0.1%

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