Description

Methyl Octadecanoate CAS NO 112-61-8 is a high-purity fatty acid methyl ester (FAME) derived from stearic acid. This compound serves as a versatile and critical intermediate in the synthesis of specialty chemicals, surfactants, and personal care ingredients. It is essential for manufacturers in the cosmetics, lubricants, and pharmaceutical industries seeking consistent quality and reliable supply for their formulations.

Application

• Surfactant & Emulsifier Synthesis: A key raw material for producing non-ionic surfactants and emulsifiers used in detergents, industrial cleaners, and agrochemicals.
• Personal Care & Cosmetics: Acts as an emollient, thickener, and opacifying agent in creams, lotions, and makeup products.
• Lubricant & Metalworking Fluids: Used as a bio-based component or synthetic base stock in formulating high-performance lubricants, greases, and cutting fluids.
• Plasticizer & Polymer Additive: Functions as a secondary plasticizer and internal lubricant in PVC and other polymer processing to improve flexibility and flow.
• Flavor & Fragrance Industry: Employed as a fragrance fixative and as a starting material for synthesizing specific aroma chemicals.
• Pharmaceutical Intermediates: Serves as a building block in the synthesis of various active pharmaceutical ingredients (APIs) and excipients.
• Research & Development: Used as a standard or reagent in analytical chemistry, biochemistry, and material science research.
• Biofuel & Renewable Chemicals: Can be utilized as a component in biodiesel blends and as a precursor for green solvents.

Basic Information

Product Name	Methyl Octadecanoate
CAS No.	112-61-8
Molecular Formula	C19H38O2
Molecular Weight	298.50 g/mol
Synonyms	Methyl Stearate; Stearic Acid Methyl Ester; Methyl n-Octadecanoate; Octadecanoic Acid Methyl Ester; NSC 9858; FEMA 4555; Methyl ester of stearic acid
EINECS	203-990-4

Quality Control

Our Methyl Octadecanoate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets stringent specifications for industrial and specialty applications. Certificates of Analysis (COA) documenting purity, physical properties, and impurity profiles are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	White to off-white solid / flakes
Identification (IR)	Conforms to standard
Assay (GC)	≥ 98.0%
Melting Point	37 - 40 °C
Acid Value	≤ 1.0 mg KOH/g
Iodine Value	≤ 2.0 g I2/100g
Saponification Value	188 - 195 mg KOH/g
Heavy Metals (as Pb)	≤ 10 ppm

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