Description

Bisstearic Acid 1-Methyltrimethylene Ester is a high-purity, synthetic diester derived from stearic acid and 1-methyltrimethylene glycol. This compound is valued for its excellent lubricity, thermal stability, and hydrophobic properties, making it a versatile intermediate and functional additive. It is primarily used by formulators in the lubricants, plastics, cosmetics, and coatings industries to enhance product performance and processing characteristics.

Application

• Lubricant & Grease Additive: Functions as a high-performance synthetic ester base oil or thickener, offering excellent viscosity-temperature behavior and low volatility.
• Plasticizer & Processing Aid for Polymers: Acts as an internal lubricant and mold release agent in PVC, engineering plastics, and rubber compounds to improve flow and surface finish.
• Cosmetic & Personal Care Ingredient: Used as an emollient, viscosity modifier, and skin-conditioning agent in creams, lotions, and stick formulations.
• Coating & Ink Additive: Imparts slip, mar resistance, and water repellency to industrial paints, varnishes, and printing inks.
• Metalworking Fluid Component: Serves as a lubricity agent and corrosion inhibitor in synthetic and semi-synthetic cutting and drawing fluids.
• Textile & Fiber Lubricant: Applied as a spin finish or coning oil to reduce friction and static during fiber manufacturing and processing.

Basic Information

Product Name	Bisstearic Acid 1-Methyltrimethylene Ester
CAS No.	14251-40-2
Molecular Formula	C41H80O4
Molecular Weight	637.1 g/mol
Synonyms	1,3-Propanediol, 2-methyl-, 1,3-distearate; 2-Methyl-1,3-propanediol distearate; 1-Methyltrimethylene Distearate; Distearyl 2-Methyltrimethylene Ester; Stearic Acid, Diester with 2-Methyl-1,3-Propanediol; Bis(stearoyloxy)-2-methylpropane; MGDS (Methyl Glycol Distearate); Synthetic Ester Lube Base Oil
EINECS	238-144-1

Quality Control

Our Bisstearic Acid 1-Methyltrimethylene Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, acid value, hydroxyl value, and color. Our production adheres to ISO 9001 standards, and we can support compliance documentation for REACH, FDA (indirect food contact), and cosmetic ingredient regulations as required.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Keep away from strong oxidizing agents, strong acids, and strong bases. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	White to off-white waxy solid/flakes
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0 %
Acid Value	≤ 1.0 mg KOH/g
Hydroxyl Value	≤ 5.0 mg KOH/g
Saponification Value	175 - 185 mg KOH/g
Color (APHA)	≤ 50
Melting Point	55 - 65 °C
Moisture (KF)	≤ 0.1 %

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