Description

Trimethylolpropane Triisooctadecanoate is a high-molecular-weight, branched synthetic ester derived from trimethylolpropane and isostearic acid. This compound serves as a premium, non-greasy emollient and lubricant with excellent oxidative stability and low volatility. It is primarily needed by formulators in the personal care, cosmetics, and high-performance lubricant industries seeking superior skin feel, moisture barrier properties, and thermal resistance.

Application

• Personal Care & Cosmetics: Acts as a high-performance emollient and skin-conditioning agent in creams, lotions, sunscreens, and lipsticks, providing a dry, silky feel without greasiness.
• Lubricants & Greases: Used as a synthetic base oil or additive in specialty lubricants, metalworking fluids, and greases requiring high thermal stability and low pour points.
• Plasticizers: Functions as a secondary plasticizer and stabilizer in polymer systems, including PVC and synthetic rubbers, to improve flexibility and processing.
• Industrial Coatings & Inks: Employed as a leveling and flow agent to enhance the gloss, smoothness, and application properties of coatings and printing inks.
• Release Agents: Effective as a mold release agent in plastic and rubber manufacturing processes due to its excellent lubricity and non-migratory nature.

Basic Information

Product Name	Trimethylolpropane Triisooctadecanoate
CAS No.	68541-50-4
Molecular Formula	C60H116O6
Molecular Weight	933.6 g/mol
Synonyms	Trimethylolpropane Triisostearate; TMP Triisostearate; 2-Ethyl-2-[[(1-oxoisooctadecyl)oxy]methyl]-1,3-propanediyl Diisooctadecanoate; Propanoic Acid, 2,2-Bis[[(1-oxoisooctadecyl)oxy]methyl]methyl Ester; TMP Tris(Isooctadecanoate); Trimethylolpropane Ester of Isooctadecanoic Acid; Synthetic Ester Oil; Cosmetic Grade Ester
EINECS	Contact for details

Quality Control

Our Trimethylolpropane Triisooctadecanoate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and performance for your specific application. Certificates of Analysis (COA) documenting key parameters such as acid value, hydroxyl value, saponification value, and color are available 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 and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, pale yellow viscous liquid
Acid Value (mg KOH/g)	≤ 2.0
Hydroxyl Value (mg KOH/g)	≤ 10.0
Saponification Value (mg KOH/g)	170 - 190
Color (Gardner)	≤ 3
Moisture Content (Karl Fischer)	≤ 0.1%
Identification (IR)	Conforms

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