Description

Triisooctyl 3,3',3''-[(Butylstannylidyne)Tris(Thio)]Tripropionate is a specialized organotin compound designed for high-performance applications requiring thermal and light stabilization. This product matters for its exceptional ability to act as a multi-functional additive, providing superior protection to sensitive materials against degradation. It is primarily needed by manufacturers in the polymer and plastics industries, as well as in advanced material science, where long-term stability under harsh conditions is critical.

Application

• Primary Stabilizer in polyvinyl chloride (PVC) and other halogenated polymers to prevent dehydrochlorination and discoloration during processing and use.
• Synergistic Additive in complex stabilizer systems for rigid and flexible PVC applications, including pipes, profiles, and films.
• Light Stabilizer for protecting coatings, adhesives, and sealants from UV-induced degradation, extending product lifespan.
• Lubricant and Processing Aid in polymer extrusion and molding, improving flow properties and reducing equipment wear.
• Stabilizer for Specialty Elastomers and synthetic rubbers that require enhanced resistance to heat and oxidation.
• Intermediate in the synthesis of other advanced organometallic compounds and catalysts.

Basic Information

Product Name	Triisooctyl 3,3',3''-[(Butylstannylidyne)Tris(Thio)]Tripropionate
CAS No.	36118-60-2
Molecular Formula	C44H86O6S3Sn
Molecular Weight	910.0 g/mol (approx.)
Synonyms	Butyltin tris(isooctyl 3-mercaptopropionate); Butyltin tris(isooctyl thioglycolate); Tinuvin B 77 (historical/trade); Organotin stabilizer 36118-60-2; Tris(isooctyl 3-mercaptopropionato)butyltin; Butyltin tris(3-mercaptopropionic acid isooctyl ester); (Butylstannylidyne)tris(thio)triisooctyl propionate
EINECS	Contact for details

Quality Control

Our Triisooctyl 3,3',3''-[(Butylstannylidyne)Tris(Thio)]Tripropionate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, potency, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing specifications such as tin content, assay, and color is available upon request, supporting compliance with relevant industry and customer-specific requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, the container should be opaque or stored in darkness to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow liquid
Identification (IR)	Conforms to structure
Assay (Sn Content)	≥ 12.5 %
Specific Gravity (20°C)	1.05 - 1.10
Refractive Index (20°C)	1.490 - 1.510
Color (Gardner)	≤ 5
Water Content	≤ 0.2 %

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