Description

20-Methoxy-20-Oxooctadecanoic Acid is a high-purity, long-chain fatty acid derivative characterized by its terminal methoxy and oxo functional groups. This compound serves as a versatile chemical intermediate and building block for synthesizing more complex molecules, offering precise control over lipophilicity and reactivity. It is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries for developing active ingredients, surfactants, and performance additives.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those requiring specific lipid-like properties.
• Agrochemical Synthesis: Used in the production of specialized herbicides, fungicides, and plant growth regulators.
• Surfactant & Emulsifier Precursor: Serves as a raw material for manufacturing non-ionic surfactants with tailored hydrophilic-lipophilic balance (HLB).
• Lubricant & Fuel Additive Component: Employed in creating performance-enhancing additives that modify viscosity and reduce friction.
• Polymer Modification: Acts as a monomer or modifier in the production of specialty polyesters and polyamides to alter material properties.
• Cosmetic Ingredient Synthesis: Intermediate for producing esters and other compounds used in skincare and personal care formulations.
• Research & Development: A valuable tool in organic chemistry research for studying long-chain fatty acid transformations and reactions.

Basic Information

Product Name	20-Methoxy-20-Oxooctadecanoic Acid
CAS No.	1767-98-2
Molecular Formula	C₁₉H₃₆O₄
Molecular Weight	328.49 g/mol
Synonyms	20-Methoxy-20-oxooctadecanoic acid; 20-Methoxyeicosanoic acid; Methyl 19-carboxynonadecanoate; 19-Methoxy-19-oxononadecanoic acid; ω-Methoxyoctadecanoic acid; 20-Methoxyicosanoic acid; Stearic acid, 20-methoxy-20-oxo-; Octadecanoic acid, 20-methoxy-20-oxo-
EINECS	217-189-7

Quality Control

Our 20-Methoxy-20-Oxooctadecanoic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, documenting key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment ensures the material is suitable for demanding GMP-grade synthesis and critical R&D applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and heat sources. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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