Description

(Dioctylstannylene)Bis(Thioethylene) Dioctanoate is a specialized organotin compound with a unique structure combining stannylene and thioether functionalities. This compound serves as a highly effective catalyst and stabilizer, valued for its ability to accelerate specific organic transformations and protect materials from degradation. It is primarily needed by manufacturers in the polymer, specialty chemical, and lubricant additive industries seeking advanced performance modifiers.

Application

• Polymer Stabilizer: Acts as a heat and light stabilizer in PVC and other halogenated polymers to prevent dehydrochlorination and discoloration.
• Polyurethane Catalyst: Used as a selective catalyst in the production of polyurethane foams and elastomers, promoting controlled reaction kinetics.
• Esterification & Transesterification Catalyst: Facilitates esterification and transesterification reactions in the synthesis of plasticizers, lubricants, and biodiesel.
• Lubricant & Grease Additive: Functions as an anti-wear and extreme pressure (EP) additive in advanced lubricating oils and greases.
• Silicone Cross-linking Agent: Employed as a catalyst in the curing and cross-linking of silicone rubbers and resins.
• Organic Synthesis Intermediate: Serves as a key intermediate or reagent in the synthesis of more complex organometallic compounds and pharmaceuticals.

Basic Information

Product Name	(Dioctylstannylene)Bis(Thioethylene) Dioctanoate
CAS No.	59118-81-9
Molecular Formula	C36H72O4S2Sn
Molecular Weight	751.8 g/mol
Synonyms	Dioctyltin Bis(2-mercaptoethyl) Octanoate; Dioctyltin Bis(2-thioethyl) Octanoate; Stannane, 1,1'-[1,2-ethanediylbis(thio)]bis[1,1-dioctyl-, diacetate (9CI); Octanoic acid, 1,1'-[1,2-ethanediylbis(thio)]bis[1,1-dioctylstannylene] ester; Tin, [1,2-ethanediylbis(thio)]bis[dioctyl-, diacetate; Organotin stabilizer OTC-1; Catalyst OTC-2
EINECS	Contact for details

Quality Control

Our (Dioctylstannylene)Bis(Thioethylene) Dioctanoate is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including assay, identification, and impurity profiling, to ensure it meets precise specifications for catalytic and stabilizing performance. Certificates of Analysis (COA) documenting purity, tin content, and other critical 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, well-ventilated area at room temperature (15-25°C). This material is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen or argon) to maintain stability and prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (Tin Content)	≥ 15.5 %
Purity (HPLC)	≥ 95.0 %
Specific Gravity (20°C)	1.05 - 1.15
Refractive Index (n20D)	1.480 - 1.510

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