Description

Diisooctyl 4,4,15,15-Tetrabutyl-7,12-Dioxo-8,11-Dioxa-3,5,14,16-Tetrathia-4,15-Distannaoctadecanedioate CAS NO 65308-00-1 is a specialized organotin compound with a complex, multi-functional structure. This chemical matters as a high-performance stabilizer and catalyst, offering superior thermal and light stability in demanding polymer formulations. It is primarily needed by manufacturers in the plastics, coatings, and specialty chemical synthesis industries seeking to enhance material durability and processing characteristics.

Application

• Polyvinyl Chloride (PVC) Stabilizer: Acts as a highly effective heat and light stabilizer for rigid and flexible PVC products, including pipes, profiles, and films.
• Polyurethane Catalyst: Serves as a catalyst in the production of polyurethane foams and elastomers, influencing reaction kinetics and final polymer properties.
• Silicone Cross-Linking Agent: Used in silicone rubber and resin formulations to facilitate cross-linking and improve thermal resistance.
• Lubricant & Grease Additive: Functions as an extreme pressure (EP) additive and anti-wear agent in advanced lubricant formulations.
• Polymer Modification: Employed as a compatibilizer or property modifier in engineering plastics and polymer blends.
• Specialty Chemical Intermediate: Utilized in organic synthesis for the preparation of other organometallic compounds and functional materials.

Basic Information

Item	Details
Product Name	Diisooctyl 4,4,15,15-Tetrabutyl-7,12-Dioxo-8,11-Dioxa-3,5,14,16-Tetrathia-4,15-Distannaoctadecanedioate
CAS No.	65308-00-1
Molecular Formula	C52H100O8S4Sn2
Molecular Weight	~1220.0 g/mol
Synonyms	Dioctyltin bis(isooctyl thioglycolate); Diisooctyltin bis(isooctylmercaptoacetate); Isooctyltin stabilizer; Thermoplastic stabilizer 65308-00-1; Dioctyltin bis(2-ethylhexyl thioglycolate) (related analog); Organotin stabilizer; Tin-based PVC stabilizer; Distannoxane derivative
EINECS	Contact for details

Quality Control

Our production of this organotin compound adheres to strict quality protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through analytical methods including HPLC, FT-IR, and titration to confirm identity, purity, and active tin content. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

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. The container must be kept tightly sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber viscous liquid
Identification (IR)	Conforms to structure
Assay (Sn content)	≥ 18.5 %
Purity (HPLC)	≥ 95.0 %
Specific Gravity (20°C)	1.05 - 1.15
Refractive Index (20°C)	1.490 - 1.510

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