Description

Triisooctyl 2,2',2''-[(Methylstannylidyne)Tris(Thio)]Triacetate is a specialized organotin compound with a unique sulfur-bridged structure, serving as a highly effective stabilizer and catalyst in demanding polymer applications. Its core value lies in providing exceptional thermal and light stability to PVC and other halogenated polymers, preventing degradation and extending product lifespan. This chemical is essential for manufacturers in the plastics, coatings, and specialty chemical industries seeking to enhance the performance and durability of their formulations.

Application

• Primary Stabilizer for Rigid PVC: Used in pipes, fittings, window profiles, and siding to prevent thermal degradation during high-temperature processing.
• Stabilizer for Flexible PVC Compounds: Imparts stability in calendered films, cables, and flooring applications.
• Catalyst and Intermediate: Acts as a catalyst in polyurethane (PU) formation and transesterification reactions, and serves as a key intermediate for synthesizing other organotin compounds.
• Stabilizer for Other Polymers: Provides stabilization for chlorinated polyethylene (CPE) and other halogen-containing polymers.
• Lubricant and Additive: Functions as a lubricant and anti-wear additive in advanced greases and industrial lubricants.
• Wood Preservative Component: Used in formulations to protect wood against fungal decay and insect attack.

Basic Information

Product Name	Triisooctyl 2,2',2''-[(Methylstannylidyne)Tris(Thio)]Triacetate
CAS No.	54849-38-6
Molecular Formula	C49H94O6S3Sn
Molecular Weight	994.2 g/mol
Synonyms	Methyltin tris(isooctyl thioglycolate); Methyltin tris(2-ethylhexyl thioglycolate); Methyltin TOTG; Tin, methyltris[(2-ethylhexyloxy)carbonylmethylthio]-, (T-4)-; Methylstannylidyne tris(thio) triacetate triisooctyl ester; Organotin stabilizer 54849-38-6; PVC heat stabilizer; Estertin MT-800 (example trade name)
EINECS	Contact for details

Quality Control

Our production of Triisooctyl 2,2',2''-[(Methylstannylidyne)Tris(Thio)]Triacetate adheres to a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed using advanced techniques including GC, HPLC, and NMR to verify chemical identity, purity, and absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all specification parameters is provided with every shipment 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 temperatures between 15-25°C (59-77°F). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use. For long-term storage, consider using an inert atmosphere (e.g., nitrogen) to minimize potential oxidation.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 95.0%
Tin (Sn) Content	11.5 - 12.5 %
Specific Gravity (20°C)	1.05 - 1.15
Refractive Index (20°C)	1.480 - 1.500
Water Content (KF)	≤ 0.5%

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