Description

Diisooctyl 2,2'-[(Dioctylstannylene)Bis(Thio)]Diacetate is a specialized organotin compound primarily utilized as a high-performance stabilizer and catalyst in polymer chemistry. Its core value lies in its ability to effectively control degradation and enhance the processing stability of various polymeric materials under heat and shear. This product is essential for manufacturers in the plastics, PVC, and specialty elastomer industries seeking to improve product longevity and performance. Its specific structure offers advantages in applications requiring precise thermal and oxidative stabilization.

Application

• Primary Stabilizer for PVC: Used in rigid and flexible PVC formulations to prevent thermal degradation during processing (e.g., extrusion, calendering) and to provide long-term heat stability.
• Polymerization Catalyst: Acts as a catalyst or co-catalyst in specific polycondensation and polyaddition reactions for producing polyesters, polyurethanes, and other specialty polymers.
• Lubricant and Process Aid: Functions as an internal lubricant and processing aid in complex polymer blends, improving flow properties and reducing energy consumption.
• Crosslinking Agent: Employed in the curing and crosslinking of silicone rubbers and other elastomers to enhance their mechanical and thermal properties.
• Stabilizer for Other Halogenated Polymers: Provides stabilization for polymers beyond PVC, such as chlorinated polyethylene (CPE) or vinyl chloride copolymers.
• Intermediate for Synthesis: Serves as a key intermediate in the synthesis of other organotin compounds with tailored functionalities for research and development.

Basic Information

Product Name	Diisooctyl 2,2'-[(Dioctylstannylene)Bis(Thio)]Diacetate
CAS No.	26401-97-8
Molecular Formula	C44H86O4S2Sn
Molecular Weight	846.0 g/mol (approx.)
Synonyms	Dioctyltin Bis(Isooctyl Thioglycolate); Dioctyltin Bis(2-Ethylhexyl Thioglycolate); Diisooctyltin Bis(2-Ethylhexyl Thioglycolate); DOTG; Thermolite 890; Stanclere T-2500; Advastab TM-692; Tin Stabilizer T-250; 2-Ethylhexyl Thioglycolic Acid Ester with Dioctyltin Oxide
EINECS	Contact for details

Quality Control

Our production of Diisooctyl 2,2'-[(Dioctylstannylene)Bis(Thio)]Diacetate adheres to a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with industry specifications. Certificates of Analysis (COA) detailing key parameters such as tin content, assay, and impurity profiles 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). Keep away from strong oxidizing agents, strong acids, and strong bases. Under recommended storage conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (Tin Content)	Min. 13.5%
Specific Gravity (20°C)	1.05 - 1.10
Refractive Index (20°C)	1.490 - 1.510
Color (Gardner)	Max. 5
Moisture (KF)	Max. 0.3%

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