Description

8,8-Dioctyl-1,4-Dioxa-7,9-Dithia-8-Stannacycloundecane-5,11-Dione is a specialized organotin compound featuring a unique macrocyclic structure. This chemical matters as a highly effective catalyst and stabilizer, offering superior performance in polymer synthesis and stabilization processes. It is primarily needed by manufacturers in the plastics, rubber, and specialty chemical industries for applications requiring precise thermal and UV stabilization.

Application

• Polymerization Catalyst: Acts as a highly efficient catalyst in the production of polyurethanes, polyesters, and other condensation polymers.
• PVC Stabilizer: Provides excellent heat and light stabilization for rigid and flexible PVC formulations, preventing degradation during processing and use.
• Rubber Additive: Used as a stabilizer and curing agent in silicone rubber and other synthetic elastomers to enhance durability.
• Lubricant & Grease Additive: Serves as an extreme pressure (EP) additive and antioxidant in high-performance industrial lubricants and greases.
• Wood Preservative Synergist: Enhances the efficacy and stability of fungicidal and insecticidal treatments for timber and wood composites.
• Antifouling Agent Intermediate: Used in the synthesis of organotin compounds for marine antifouling paints (subject to regional regulations).
• Crosslinking Agent: Facilitates crosslinking reactions in specialty silicone resins and high-temperature polymers.
• Research & Development: Employed in academic and industrial R&D for developing new catalytic systems and advanced material science applications.

Basic Information

Product Name	8,8-Dioctyl-1,4-Dioxa-7,9-Dithia-8-Stannacycloundecane-5,11-Dione
CAS No.	69226-44-4
Molecular Formula	C24H44O4S2Sn
Molecular Weight	587.45 g/mol
Synonyms	Dioctyltin Macrocyclic Ester; Dioctyltin Dithioether Diketone; 8,8-Dioctyl-1,4-dioxa-7,9-dithia-8-stannacycloundecane-5,11-dione; Stannacycloundecane derivative; Organotin stabilizer 69226-44-4; Tin-based macrocyclic compound; Dioctyltin bis(2-mercaptoethyl ether) derivative; Contact for other trade names.
EINECS	Contact for details

Quality Control

Our 8,8-Dioctyl-1,4-Dioxa-7,9-Dithia-8-Stannacycloundecane-5,11-Dione is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with relevant industry specifications. Certificates of Analysis (COA) detailing assay, impurity profiles, and physical characteristics are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flame. For long-term storage, maintaining an inert atmosphere (nitrogen or argon) is recommended to preserve product integrity.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Tin (Sn) Content	20.0 - 21.0 %
Melting Point	Contact for details
Loss on Drying	≤ 0.5 %
Heavy Metals (as Pb)	≤ 10 ppm

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