Description

[Bis(3-Butoxy-3-Oxopropyl)Stannylene]Bis(Thioethylene) Distearate is a specialized organotin compound that serves as a highly effective stabilizer and catalyst in polymer chemistry. Its molecular structure provides exceptional thermal and light stability, making it a critical additive for enhancing the durability and performance of various synthetic materials. This product is essential for manufacturers in the plastics, coatings, and specialty chemical industries seeking to improve product longevity and processing characteristics.

Application

• Polyvinyl Chloride (PVC) Stabilizer: Acts as a primary or co-stabilizer to prevent thermal degradation and discoloration during the processing of rigid and flexible PVC formulations.
• Polymer Catalyst: Used as a catalyst or catalyst component in polycondensation reactions, such as for polyesters and polyurethanes.
• Lubricant & Processing Aid: Functions as an internal lubricant and mold release agent in high-temperature polymer processing, improving flow and surface finish.
• Crosslinking Agent: Employed in the curing and crosslinking of silicone rubbers and other elastomers to enhance mechanical properties.
• Antifogging Agent: Used in agricultural and packaging films to prevent condensation and maintain clarity.
• Specialty Additive for Coatings: Imparts improved weatherability, gloss retention, and chemical resistance in industrial and protective coatings.

Basic Information

Product Name	[Bis(3-Butoxy-3-Oxopropyl)Stannylene]Bis(Thioethylene) Distearate
CAS No.	76461-84-2
Molecular Formula	C52H100O8S2Sn
Molecular Weight	1020.2 g/mol (approx.)
Synonyms	Dioctyltin Bis(Thioethylene Glycol) Distearate; Distannoxane Derivative; Tin Stabilizer 76461-84-2; Organotin Thioester; Bis(3-butoxy-3-oxopropyl)stannylene bis(2-mercaptoethyl) distearate; Tin-based Heat Stabilizer; Dioctyltin Bis(2-mercaptoethyl) Distearate; Octyltin Mercaptide Ester
EINECS	Contact for details

Quality Control

Our production of [Bis(3-Butoxy-3-Oxopropyl)Stannylene]Bis(Thioethylene) Distearate adheres to strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with relevant industry standards. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with every shipment to guarantee traceability and quality assurance for our global B2B clients.

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 sources, strong oxidizing agents, and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid or paste
Identification (IR)	Conforms to structure
Assay (Tin Content)	Min. 11.5%
Purity (HPLC)	Min. 95.0%
Acid Value	≤ 2.0 mg KOH/g
Moisture (KF)	≤ 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.