Description

Dioctyldithioxodistannathiane is an organotin compound with the CAS number 36432-42-5, primarily utilized as a high-performance stabilizer and catalyst in polymer chemistry. This compound is valued for its ability to enhance thermal stability and prevent degradation in sensitive materials during processing. It is a critical component for manufacturers in the plastics, coatings, and specialty chemical industries seeking to improve product longevity and performance under demanding conditions.

Application

• PVC Stabilizer: Acts as a highly effective heat stabilizer in the production of rigid and flexible polyvinyl chloride (PVC) products, preventing discoloration and decomposition during extrusion and molding.
• Polymer Catalyst: Serves as a catalyst or co-catalyst in polyurethane (PU) and silicone elastomer formulations, facilitating cross-linking reactions and improving final material properties.
• Lubricant Additive: Used as an anti-wear and extreme pressure (EP) additive in advanced synthetic lubricants and greases for industrial machinery.
• Wood Preservative: Incorporated into formulations for protecting timber against fungal decay and insect infestation, extending the service life of outdoor wood structures.
• Antifouling Agent: A key biocidal component in marine antifouling paints for ship hulls, preventing the attachment of barnacles, algae, and other marine organisms.
• Silicone Cross-linker: Functions as a curing agent in room-temperature vulcanizing (RTV) silicone rubbers and sealants, ensuring optimal elasticity and durability.

Basic Information

Product Name	Dioctyldithioxodistannathiane
CAS No.	36432-42-5
Molecular Formula	C₁₆H₃₄S₂Sn₂
Molecular Weight	528.0 g/mol
Synonyms	Bis(dioctyltin) sulfide; Dioctyltin sulfide; Di-n-octyltin sulfide; Tin, bis(dioctylthioxo)-; Stabilizer OTS; Octyltin sulfide; Thermolite 890; PVC heat stabilizer OTS
EINECS	Contact for details

Quality Control

Our production of Dioctyldithioxodistannathiane adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against comprehensive specifications, including assay, tin content, and impurity profile. Certificates of Analysis (COA) documenting purity and key physical-chemical parameters are provided with every shipment to support your quality assurance and regulatory compliance needs.

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 hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept sealed to exclude moisture and minimize exposure to ambient light. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Pale yellow to amber liquid
Identification (IR)	Conforms
Assay (Tin content)	≥ 44.0 %
Purity (HPLC)	≥ 95.0 %
Specific Gravity (20°C)	1.10 - 1.25
Water Content (Karl Fischer)	≤ 0.5 %

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