Description

Octadecanoic Acid, 13-Oxo-, Methyl Ester is a high-purity specialty ester derived from stearic acid. This compound serves as a valuable intermediate and functional additive in advanced chemical synthesis and material science. It is particularly sought after by manufacturers in the pharmaceutical, cosmetic, and specialty polymer industries for its unique ketone functionality within a long-chain fatty acid ester structure.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, leveraging its reactive ketone group for further chemical modifications.
• Cosmetic & Personal Care Ingredient: Functions as an emollient, skin-conditioning agent, and carrier for active components in creams, lotions, and ointments.
• Polymer & Resin Modifier: Acts as a plasticizer or internal lubricant to improve the flexibility and processing of specialty polymers and coatings.
• Lubricant & Metalworking Fluid Additive: Provides friction reduction and surface protection in formulated industrial lubricants.
• Flavor & Fragrance Synthesis: Serves as a key building block for creating specific aroma chemicals and flavor compounds.
• Research & Development: Employed as a standard or reagent in analytical chemistry and biochemical research.

Basic Information

Product Name	Octadecanoic Acid, 13-Oxo-, Methyl Ester
CAS No.	2380-28-1
Molecular Formula	C₁₉H₃₆O₃
Molecular Weight	312.49 g/mol
Synonyms	13-Oxooctadecanoic Acid Methyl Ester; Methyl 13-Ketostearate; Methyl 13-Oxooctadecanoate; 13-Ketostearic Acid Methyl Ester; 13-Oxostearic Acid Methyl Ester; Methyl 13-Oxostearate; 13-Oxo Stearic Acid Methyl Ester
EINECS	219-185-5

Quality Control

Our Octadecanoic Acid, 13-Oxo-, Methyl Ester is manufactured under a stringent quality management system. Every batch is analyzed to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee consistency and traceability for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or waxy solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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