Description

Bis(2-Methylpropyl) Mercaptosuccinate is a specialized organosulfur compound with significant utility as a chemical intermediate and functional additive. Its value lies in its ability to act as a versatile building block for synthesizing more complex molecules and as a modifier in polymer systems. This product is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and polymer industries seeking to develop or enhance product performance through tailored chemical functionality.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly where thiol or ester functionalities are required.
• Polymer Modification Agent: Acts as a chain transfer agent (CTA) or cross-linking agent in the production of specialty polymers and resins to control molecular weight and introduce specific properties.
• Agrochemical Synthesis: Serves as a key precursor in the manufacture of certain pesticides, herbicides, and plant growth regulators.
• Lubricant and Fuel Additive: Employed as an anti-wear agent or extreme pressure (EP) additive in advanced lubricant formulations.
• Chemical Research & Development: A valuable reagent for organic synthesis, enabling the introduction of the mercaptosuccinate moiety into target molecules.
• Rubber and Elastomer Processing: Functions as a peptizing agent or vulcanization modifier to improve processing characteristics and final product properties.

Basic Information

Product Name	Bis(2-Methylpropyl) Mercaptosuccinate
CAS No.	65291-43-2
Molecular Formula	C12H22O4S
Molecular Weight	262.37 g/mol
Synonyms	Diisobutyl Mercaptosuccinate; Mercaptosuccinic Acid Diisobutyl Ester; Diisobutyl Thiomalate; Bis(isobutyl) Mercaptosuccinate; 2,2'-[(Dithiodi-2,1-ethanediyl)bis(oxy)]bis[2-methylpropyl] ester (related); DIBS; Thiomalic Acid Diisobutyl Ester
EINECS	Contact for details

Quality Control

Our production of Bis(2-Methylpropyl) Mercaptosuccinate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise customer specifications and industry standards. A Certificate of Analysis (COA) documenting purity, physical properties, and test results is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen) when in partially used containers to maintain stability and prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Specific Gravity (20°C)	1.040 - 1.080
Refractive Index (n20D)	1.460 - 1.480
Water Content (KF)	≤ 0.5%
Related Impurities (GC)	≤ 1.0% (total)

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