Description

Octadecyl 2-Methyl-3-(Tridecylthio)Propionate is a high-purity specialty ester with a unique thioether linkage, designed for advanced performance applications. This compound serves as a highly effective multifunctional additive, offering exceptional stability and compatibility in demanding formulations. It is primarily utilized by manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product longevity and performance under oxidative stress.

Application

• Polymer Stabilizer: Acts as a secondary antioxidant and metal deactivator in polyolefins (e.g., PP, PE) and engineering plastics to prevent thermal and oxidative degradation during processing and end-use.
• Lubricant & Grease Additive: Imparts excellent anti-wear and extreme pressure (EP) properties, while improving the oxidative stability of synthetic and mineral-based lubricants and industrial greases.
• Rubber Antioxidant: Used in the production of synthetic rubbers (SBR, NBR) and elastomers to retard aging, prevent cracking, and maintain flexibility.
• Fuel & Oil Additive: Enhances the stability of fuels, hydraulic fluids, and transformer oils by neutralizing peroxides and chelating pro-oxidant metal ions.
• Adhesive & Sealant Formulation: Improves the long-term durability and resistance to environmental aging of high-performance adhesives, sealants, and coatings.
• Cosmetic & Personal Care Stabilizer: Employed in specialty formulations requiring stabilization against rancidity and discoloration caused by oxidation.

Basic Information

Product Name	Octadecyl 2-Methyl-3-(Tridecylthio)Propionate
CAS No.	36994-36-2
Molecular Formula	C₃₅H₇₀O₂S
Molecular Weight	554.99 g/mol
Synonyms	Stearyl 2-Methyl-3-(tridecylthio)propionate; Octadecyl 2-methyl-3-(tridecylthio)propanoate; 3-(Tridecylthio)-2-methylpropionic acid octadecyl ester; Antioxidant 1035; Thioester antioxidant; AO 1035; Irganox 1035 (common trade name reference); Propanoic acid, 3-(tridecylthio)-2-methyl-, octadecyl ester
EINECS	Contact for details

Quality Control

Our production of Octadecyl 2-Methyl-3-(Tridecylthio)Propionate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications using advanced techniques including HPLC, GC, and NMR. A Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment, ensuring full traceability and compliance with relevant industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen) to preserve efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white waxy solid or flakes
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	48 - 52 °C
Heavy Metals (as Pb)	≤ 10 ppm
Loss on Drying	≤ 0.5 %
Sulfur Content	5.6 - 6.0 %

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