Description

Diisotridecyl 3,3'-[(Dibutylstannylene)Bis(Thio)]Dipropionate is a high-performance organotin-based stabilizer and catalyst used in demanding polymer formulations. Its primary value lies in providing exceptional thermal stability and process control, preventing degradation during high-temperature manufacturing. This compound is essential for producers of PVC, polyurethanes, and other specialty polymers who require reliable performance and extended material lifespan.

Application

• Primary Stabilizer for Rigid PVC: Imparts excellent long-term heat stability in pipes, profiles, and fittings.
• Catalyst for Polyurethane Foams: Used as a gelling catalyst in the production of flexible and rigid foams.
• Stabilizer for PVC Plastisols: Enhances thermal stability in coatings, flooring, and synthetic leather applications.
• Additive for Wire & Cable Compounds: Protects insulation and jacketing materials from thermal degradation.
• Stabilizer for Other Halogenated Polymers: Used in formulations containing CPVC or other halogen-containing resins.
• Cross-linking Agent: Functions as a catalyst or co-agent in silicone and other elastomer curing systems.

Basic Information

Product Name	Diisotridecyl 3,3'-[(Dibutylstannylene)Bis(Thio)]Dipropionate
CAS No.	84896-44-6
Molecular Formula	C42H84O4S2Sn
Molecular Weight	804.0 g/mol (approx.)
Synonyms	Dioctyltin Bis(Isocetyl Thioglycolate); Diisotridecyl 3,3'-(Dibutylstannylenebisthio)dipropionate; Dibutyltin Bis(Isocetyl Thioglycolate) (common name); Diisotridecyl 3,3'-(dibutylstannylene)dithiodipropionate; Organotin Stabilizer 84896-44-6; Therm-Chek RC 213L (example trade name); Stanclere T-2500 (example trade name); Dioctyltin Bis(Isocetylmercaptoacetate)
EINECS	Contact for details

Quality Control

Our Diisotridecyl 3,3'-[(Dibutylstannylene)Bis(Thio)]Dipropionate is manufactured under strict quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is tested against stringent in-house specifications for critical parameters such as tin content, color, and viscosity. A comprehensive Certificate of Analysis (COA) detailing purity and performance characteristics is provided with every shipment.

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 strong acids and incompatible organic solvents. For long-term storage, consider under an inert atmosphere to maintain optimal efficacy.

Specification

Item	Specification
Appearance	Clear, pale yellow liquid
Identification (IR)	Conforms
Assay (Tin Content)	14.5 - 15.5 %
Color (Gardner)	≤ 3
Specific Gravity (25°C)	1.05 - 1.10
Refractive Index (25°C)	1.490 - 1.500

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