Description

Didecyl Mercaptosuccinate CAS NO 58473-83-9 is a high-purity organosulfur compound primarily utilized as a specialty additive and intermediate. Its value lies in its unique chemical structure, which imparts properties such as antioxidant activity and metal chelation, making it a critical component in formulations requiring stabilization and performance enhancement. This product is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to improve product longevity and functionality.

Application

• Polymer Stabilizer: Acts as an antioxidant and metal deactivator in polyolefins and other plastics to prevent thermal and oxidative degradation during processing and service life.
• Lubricant Additive: Functions as an extreme pressure (EP) agent and anti-wear component in industrial lubricants and greases.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex organosulfur compounds and specialty surfactants.
• Rubber Processing Aid: Used as a peptizing agent and plasticizer in the rubber industry to improve processing and final product properties.
• Fuel & Oil Additive: Employed as a dispersant and detergent additive in fuel and engine oil formulations to control deposits.
• Metal Working Fluids: Incorporated as a corrosion inhibitor and lubricity enhancer in cutting and grinding fluids.

Basic Information

Product Name	Didecyl Mercaptosuccinate
CAS No.	58473-83-9
Molecular Formula	C24H46O4S
Molecular Weight	430.69 g/mol
Synonyms	Didecyl 2-sulfanylbutanedioate; Di-n-decyl mercaptosuccinate; Mercaptosuccinic acid didecyl ester; Didecyl thiomalate; 2,3-Bis(decyloxycarbonyl)propane-1-thiol; Didecyl ester of mercaptosuccinic acid; Didecyl sulfanylbutanedioate
EINECS	261-290-3

Quality Control

Our Didecyl Mercaptosuccinate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, purity profiling, and impurity identification, to ensure it meets the high standards required for industrial and specialty applications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %
Specific Gravity (20°C)	0.95 - 0.98
Refractive Index (20°C)	1.460 - 1.470

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