Description

Diisooctyl 3,3'-[(Dioctylstannylene)Bis(Thio)]Dipropionate is a specialized organotin compound primarily utilized as a high-performance stabilizer and catalyst. This product is critical for enhancing the thermal and light stability of various polymer systems, preventing degradation during processing and extending the service life of finished goods. It is an essential material for manufacturers in the plastics, PVC, and specialty chemical industries seeking reliable additive solutions.

Application

• Primary Stabilizer for PVC: Used in rigid and flexible PVC formulations to prevent thermal degradation and discoloration during extrusion, calendering, and molding processes.
• Polymerization Catalyst: Acts as a catalyst in specific polyurethane and silicone polymerization reactions.
• Light Stabilizer: Provides protection against UV-induced degradation in outdoor plastic applications, such as window profiles, siding, and cables.
• Lubricant and Processing Aid: Improves the flow properties of polymer melts, reducing processing energy and improving surface finish.
• Cross-linking Agent: Employed in the vulcanization of certain rubbers and in the curing of silicone sealants and adhesives.
• Synergistic Additive: Used in combination with other stabilizers (e.g., calcium/zinc) to enhance overall stabilization performance in sensitive applications.

Basic Information

Item	Details
Product Name	Diisooctyl 3,3'-[(Dioctylstannylene)Bis(Thio)]Dipropionate
CAS No.	50788-67-5
Molecular Formula	C44H86O4S2Sn
Molecular Weight	822.0 g/mol (approx.)
Synonyms	Dioctyltin Bis(Isooctyl Thioglycolate); Dioctyltin Bis(Isocetyl Thioglycolate); Diisooctyltin Bis(2-Ethylhexyl Thioglycolate); DOTG; Thermolite 890; Stanclere T 490; Advastab TM 692; Tin Stabilizer 50788-67-5
EINECS	Contact for details

Quality Control

Our Diisooctyl 3,3'-[(Dioctylstannylene)Bis(Thio)]Dipropionate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for tin content, purity, and performance. Certificates of Analysis (COA) documenting key 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). Keep away from heat, open flames, and incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (Tin Content)	Min. 14.0 %
Specific Gravity (20°C)	1.05 - 1.10
Refractive Index (20°C)	1.480 - 1.495
Water Content	Max. 0.3 %

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