Description

3,3',3''-[(Methylstannylidyne)Tristhio]Tris(Propanoic Acid 2-Ethylhexyl) Ester is a specialized organotin compound with a complex molecular structure designed for high-performance applications. This chemical matters as a highly effective stabilizer and catalyst, offering superior thermal and light stability in demanding polymer systems. It is primarily needed by manufacturers in the PVC and polymer industries seeking to enhance product longevity and performance under harsh environmental conditions.

Application

• Primary Stabilizer for Rigid PVC: Used in pipes, fittings, and profiles to provide excellent long-term heat stability and prevent degradation during high-temperature processing.
• Co-stabilizer in Flexible PVC Formulations: Enhances the performance of other stabilizers in applications like cables, flooring, and synthetic leather.
• Catalyst in Polyurethane (PU) and Silicone Systems: Facilitates cross-linking and curing reactions, improving the final material's mechanical properties.
• Additive for Specialty Polymers: Imparts light stability and prevents yellowing in clear and colored polymer articles exposed to UV radiation.
• Lubricant and Process Aid: Acts as an internal lubricant in complex polymer extrusion and molding processes, improving flow and surface finish.
• Intermediate for Further Synthesis: Serves as a key building block for creating more complex organotin compounds with tailored properties.

Basic Information

Product Name	3,3',3''-[(Methylstannylidyne)Tristhio]Tris(Propanoic Acid 2-Ethylhexyl) Ester
CAS No.	57105-89-2
Molecular Formula	C34H66O6S3Sn
Molecular Weight	762.8 g/mol
Synonyms	Tris(2-ethylhexyl 3-mercaptopropionate)methyltin; Methyltin tris(2-ethylhexyl 3-mercaptopropionate); Methyltin tris(isooctyl thioglycolate); Methyltin tris(isooctyl 3-mercaptopropionate); Tin, methyltris[(2-ethylhexyloxy)carbonyl]ethylthio]-; Organotin stabilizer 57105-89-2; Methyltin mercaptide ester; PVC heat stabilizer 57105-89-2
EINECS	Contact for details

Quality Control

Our production of 3,3',3''-[(Methylstannylidyne)Tristhio]Tris(Propanoic Acid 2-Ethylhexyl) Ester adheres to a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes rigorous analytical testing, including assay by titration and identification by FT-IR, to confirm identity and purity. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen) after opening to maintain efficacy and shelf life. Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (Tin content)	Min. 15.5%
Specific Gravity (20°C)	1.08 - 1.12
Refractive Index (20°C)	1.490 - 1.510
Water Content (KF)	Max. 0.2%

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