Description

Isobutyl Stearate is a high-purity, synthetic ester derived from stearic acid and isobutyl alcohol. This versatile chemical intermediate is valued for its excellent lubricating properties, low volatility, and good solvency, making it a key component in numerous industrial formulations. It is essential for manufacturers in the cosmetics, plastics, lubricants, and textile industries seeking a reliable, high-performance emollient, plasticizer, or lubricant base.

Application

• As a high-quality emollient and skin-conditioning agent in cosmetic and personal care products like creams, lotions, and makeup.
• As a secondary plasticizer and lubricant in PVC and other polymer processing to improve flexibility and mold release.
• As a textile lubricant and softener in fiber production and fabric finishing to reduce friction and enhance hand-feel.
• As a metalworking lubricant and rolling oil additive to provide smooth surface finishes and reduce tool wear.
• As a solvent and carrier for pigments, dyes, and active ingredients in various industrial applications.
• As a waterproofing agent in coatings, leather treatments, and paper products.
• As a release agent in the production of rubber and molded plastics.
• As a base fluid or additive in specialty lubricants and greases requiring good thermal stability.

Basic Information

Product Name	Isobutyl Stearate
CAS No.	646-13-9
Molecular Formula	C22H44O2
Molecular Weight	340.59 g/mol
Synonyms	Stearic Acid Isobutyl Ester; Isobutyl Octadecanoate; 2-Methylpropyl Octadecanoate; Isobutyl Ester of Stearic Acid; Octadecanoic Acid, 2-Methylpropyl Ester; Kemester 5415; Prisorine IB 2020
EINECS	211-466-1

Quality Control

Our Isobutyl Stearate is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Production adheres to cGMP guidelines where applicable, and the product meets relevant specifications for industrial and cosmetic-grade applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and physical parameters is provided with each shipment to guarantee compliance with your requirements.

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 and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Acid Value	≤ 1.0 mg KOH/g
Saponification Value	160 - 170 mg KOH/g
Iodine Value	≤ 1.0 g I2/100g
Water Content (KF)	≤ 0.1%
Refractive Index (20°C)	1.440 - 1.445
Specific Gravity (20/20°C)	0.850 - 0.860

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