Description

3,3'-Thiodipropionic Acid Dimyristyl Ester is a high-purity, synthetic diester derived from thiodipropionic acid and myristyl alcohol. This compound serves as a highly effective secondary antioxidant and metal deactivator, crucial for stabilizing polymers against thermal and oxidative degradation. It is primarily required by manufacturers in the plastics, synthetic fiber, and lubricant industries seeking to enhance the longevity and performance of their products under demanding conditions.

Application

• Polymer Stabilizer: Acts as a secondary antioxidant (thioester) in polyolefins (PP, PE), polyamides, and other engineering plastics to provide long-term thermal stability.
• Synergistic Additive: Used in combination with primary phenolic antioxidants to significantly improve the overall oxidative stability of polymer systems.
• Metal Deactivator: Helps to chelate and neutralize catalytic metal ions (e.g., copper, iron) that can accelerate polymer degradation in wire & cable and other applications.
• Lubricant & Grease Additive: Incorporated into synthetic lubricants and greases to prevent oxidation and viscosity increase at high operating temperatures.
• Adhesive & Sealant Formulations: Enhances the heat aging resistance of hot-melt adhesives and various sealants.
• Synthetic Fiber Production: Protects polyamide and polyester fibers from thermal degradation during high-temperature melt processing.

Basic Information

Product Name	3,3'-Thiodipropionic Acid Dimyristyl Ester
CAS No.	16545-54-3
Molecular Formula	C34H66O4S
Molecular Weight	570.94 g/mol
Synonyms	Dimyristyl 3,3'-Thiodipropionate; Dimyristyl Thiodipropionate; DMTDP; DMTT; Dilauryl Thiodipropionate (related, but different alkyl chain); Antioxidant DMTDP; Thiodipropionic Acid Di(tetradecyl) Ester; Bis(tetradecyl) 3,3'-Thiodipropionate
EINECS	240-613-2

Quality Control

Our 3,3'-Thiodipropionic Acid Dimyristyl Ester is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, color, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, melting point, acid value, and other critical parameters is provided with each shipment to guarantee consistency and compliance with your formulation requirements.

Storage

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

Specification

Item	Specification
Appearance	White to off-white flake or powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	48 - 52 °C
Acid Value	≤ 1.0 mg KOH/g
Sulfur Content	5.4 - 5.8 %
Color (APHA)	≤ 50

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