Description

2-Mercaptoethyl 3,5,5-Trimethylhexanoate is a specialized sulfur-containing ester, a key intermediate and functional additive valued for its unique chemical structure. Its primary commercial significance lies in its role as a chain transfer agent (CTA) and modifier in radical polymerization processes, enabling precise control over polymer molecular weight and architecture. This compound is essential for manufacturers in the polymer, specialty chemical, and advanced materials sectors seeking to tailor material properties for high-performance applications.

Application

• Polymer Synthesis: Acts as an effective chain transfer agent (CTA) in the production of acrylics, styrenics, and other vinyl polymers to regulate molecular weight and polydispersity.
• Surface Coatings & Adhesives: Used to modify resin properties, improving flexibility, adhesion, and durability in coatings, inks, and adhesive formulations.
• Specialty Elastomers: Serves as a modifying agent and cross-linking precursor in the synthesis of specialty rubbers and thermoplastic elastomers.
• Lubricant & Fuel Additives: Functions as an anti-wear agent and extreme pressure (EP) additive due to its sulfur content, enhancing the performance of industrial lubricants and metalworking fluids.
• Pharmaceutical & Agrochemical Intermediates: Utilized as a building block in the synthesis of more complex molecules for active pharmaceutical ingredients (APIs) and crop protection agents.
• Photoresist & Electronic Chemicals: Employed in the formulation of advanced photoresists and electronic materials where precise polymer characteristics are critical.

Basic Information

Product Name	2-Mercaptoethyl 3,5,5-Trimethylhexanoate
CAS No.	67859-58-9
Molecular Formula	C11H22O2S
Molecular Weight	218.36 g/mol
Synonyms	3,5,5-Trimethylhexanoic Acid 2-Mercaptoethyl Ester; 2-Mercaptoethyl Isooctanoate; 2-Hydroxyethyl 3,5,5-Trimethylhexanoate Mercaptan; Thioglycolic Acid 3,5,5-Trimethylhexyl Ester; Isooctyl Thioglycolate; 3,5,5-Trimethylhexyl 2-Mercaptoacetate; Mercaptoethyl Isooctanoate; 2-(Mercapto)ethyl 3,5,5-Trimethylhexanoate
EINECS	Contact for details

Quality Control

Our 2-Mercaptoethyl 3,5,5-Trimethylhexanoate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and titration methods, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided to guarantee compliance with your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C under an inert atmosphere (e.g., nitrogen) to prevent oxidation. Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Specific Gravity (20°C)	0.950 - 0.980
Refractive Index (n20D)	1.455 - 1.465
Water Content (KF)	≤ 0.2%

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