Description

Octadecanoic Acid, 2-Methylbutyl Ester is a branched-chain fatty acid ester derived from stearic acid. This specialized chemical intermediate is valued for its role in modifying the physical properties of formulations, such as viscosity, melting point, and lubricity. It is primarily sought by manufacturers in the lubricants, plastics, cosmetics, and specialty chemical synthesis sectors for its performance-enhancing characteristics.

Application

• Lubricant and Grease Additive: Functions as a viscosity modifier and friction-reducing agent in synthetic and semi-synthetic lubricants.
• Plasticizer and Polymer Modifier: Used to improve the flexibility, processability, and low-temperature performance of various polymer systems.
• Cosmetic and Personal Care Ingredient: Acts as an emollient and texture enhancer in creams, lotions, and makeup products.
• Chemical Synthesis Intermediate: Serves as a building block for the production of more complex esters, surfactants, and specialty chemicals.
• Metalworking Fluids: Incorporated into formulations to provide lubrication and corrosion protection during machining and forming operations.
• Release Agent and Mold Lubricant: Applied in rubber and plastic molding processes to prevent sticking and ensure clean part release.

Basic Information

Product Name	Octadecanoic Acid, 2-Methylbutyl Ester
CAS No.	628-60-4
Molecular Formula	C23H46O2
Molecular Weight	354.62 g/mol
Synonyms	Stearic Acid, 2-Methylbutyl Ester; 2-Methylbutyl Stearate; Isoamyl Stearate; 3-Methylbutyl Octadecanoate; Isoamyl Octadecanoate; 2-Methylbutyl Octadecanoate; 1-Butanol, 2-methyl-, octadecanoate
EINECS	211-047-5

Quality Control

Our Octadecanoic Acid, 2-Methylbutyl Ester is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency meet defined specifications. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Acid Value	≤ 1.0 mg KOH/g
Saponification Value	155 - 165 mg KOH/g
Iodine Value	≤ 1.0 g I2/100g
Water Content (KF)	≤ 0.1%

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