Description

Methyl Stearate CAS NO 27234-05-5 is a fatty acid methyl ester (FAME) derived from stearic acid, serving as a versatile chemical intermediate and functional additive. Its primary value lies in its excellent lubricity, emollient properties, and ability to act as a solvent or carrier for other compounds. This product is essential for manufacturers in the cosmetics, personal care, lubricants, and plastics industries seeking reliable, high-purity raw materials.

Application

• Cosmetics & Personal Care: Acts as an emollient, skin-conditioning agent, and viscosity modifier in creams, lotions, and makeup formulations.
• Lubricants & Metalworking Fluids: Used as a bio-based lubricant additive and synthetic ester base stock, offering good lubricity and thermal stability.
• Plastic & Polymer Industry: Functions as an internal or external lubricant and processing aid in PVC and other polymer production.
• Textile & Leather Processing: Employed as a softening agent and lubricant for fibers and leather finishes.
• Chemical Synthesis: Serves as a key intermediate for producing surfactants, emulsifiers, and other ester derivatives.
• Candles & Waxes: Used as a component to modify the melting point and burning characteristics of candle wax blends.

Basic Information

Product Name	Methyl Stearate
CAS No.	27234-05-5
Molecular Formula	C19H38O2
Molecular Weight	298.50 g/mol
Synonyms	Methyl octadecanoate; Stearic acid methyl ester; Methyl n-octadecanoate; Octadecanoic acid, methyl ester; Methyl ester of stearic acid; FAME (C18:0); NSC 9851
EINECS	248-371-7

Quality Control

Our Methyl Stearate is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical testing, including gas chromatography (GC) for assay and impurity profiling, to meet the specific requirements of diverse industrial applications. Certificates of Analysis (COA) are available for every shipment upon request.

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, acids, and heat sources.

Specification

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

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