Description

[(Octylsuccinyl)Bis(Oxy)]Bis[Tributylstannane] CAS NO 67701-37-5 is a specialized organotin compound, a member of the dialkyltin dicarboxylate family, known for its role as a highly effective catalyst and stabilizer. This chemical matters for its ability to facilitate critical reactions in polymer synthesis while offering superior thermal and light stability to the final products. It is primarily needed by manufacturers in the plastics, coatings, and specialty chemical industries seeking to enhance the performance and durability of their formulations.

Application

• Polyurethane (PU) Foam Catalyst: Acts as a gelling catalyst in the production of flexible and rigid polyurethane foams, promoting the reaction between isocyanates and polyols for controlled cell structure and optimal physical properties.
• Polyvinyl Chloride (PVC) Stabilizer: Functions as a highly effective heat stabilizer in PVC processing, preventing thermal degradation and discoloration during extrusion, calendaring, and molding operations.
• Cross-linking Agent for Silicones: Used as a catalyst in condensation-cure silicone rubber systems (RTV), facilitating room-temperature vulcanization to create elastomers, sealants, and adhesives.
• Esterification & Transesterification Catalyst: Catalyzes the synthesis of esters, plasticizers, and biodiesel, offering high selectivity and efficiency under mild reaction conditions.
• Specialty Polymer Additive: Imparts light stability and weather resistance to coatings, films, and engineering plastics, extending product lifespan in outdoor applications.
• Intermediate for Organometallic Synthesis: Serves as a key precursor or reagent in the preparation of other functional organotin compounds for research and advanced material development.

Basic Information

Product Name	[(Octylsuccinyl)Bis(Oxy)]Bis[Tributylstannane]
CAS No.	67701-37-5
Molecular Formula	C40H80O6Sn2
Molecular Weight	887.5 g/mol
Synonyms	Bis(tributyltin) octylsuccinate; Dibutyltin bis(octylsuccinate); Octylsuccinic acid bis(tributylstannyl) ester; Tributyltin octylsuccinate; TBTO-Succinate; Organotin catalyst 67701-37-5; Dialkyltin dicarboxylate derivative; Stabilizer T-250 (trade name variant)
EINECS	Contact for details

Quality Control

Our production of [(Octylsuccinyl)Bis(Oxy)]Bis[Tributylstannane] adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including assay, identification, and impurity profiling, to ensure compliance with agreed specifications and industry standards. Certificates of Analysis (COA) documenting purity, physical properties, and heavy metal content (specifically tin) are provided to guarantee traceability and product consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container must be kept tightly sealed due to sensitivity to moisture and potential hydrolysis.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (Tin content)	≥ 26.5 %
Purity (HPLC)	≥ 95.0 %
Specific Gravity (20°C)	1.15 - 1.25
Refractive Index (n20D)	1.480 - 1.500
Heavy Metals (as Pb)	≤ 10 ppm
Water Content (KF)	≤ 0.5 %

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