Description

Dibutyl Tin Bis(Isooctylthioglycolate) CAS NO 25168-24-5 is a high-performance organotin compound widely used as a heat stabilizer and catalyst. It is essential for enhancing the thermal stability and processing characteristics of polyvinyl chloride (PVC) and other halogenated polymers during high-temperature manufacturing. This product is critical for manufacturers in the plastics, polymer, and coatings industries seeking to improve product longevity and performance.

Application

• Primary heat stabilizer for rigid and flexible PVC formulations, including pipes, profiles, and films.
• Catalyst for polyurethane (PU) foam production and for esterification and transesterification reactions.
• Stabilizing additive in calendering and extrusion processes for PVC sheets and flooring.
• Key component in the formulation of lubricants and greases for industrial applications.
• Used in the production of silicone sealants and adhesives to improve curing and stability.
• Employed as a catalyst in the synthesis of various specialty chemicals and polymers.

Basic Information

Product Name	Dibutyl Tin Bis(Isooctylthioglycolate)
CAS No.	25168-24-5
Molecular Formula	C28H56O4S2Sn
Molecular Weight	631.6 g/mol
Synonyms	Dibutyltin bis(isooctyl thioglycolate); Dibutyltin bis(isooctylmercaptoacetate); DBTL; Dibutyltin laurate (common trade name reference); Dibutyltin di(isooctylthioglycolate); Tin, dibutylbis[(2-ethylhexyl)thioacetato]-, (T-4)-; Stabilizer T-250; Thermolite 310; Stanclere T-250; Dioctyltin bis(isooctylthioglycolate) (related compound)
EINECS	246-699-7

Quality Control

Our Dibutyl Tin Bis(Isooctylthioglycolate) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for tin content, purity, and performance. Certificates of Analysis (COA) are provided with every shipment, confirming compliance with relevant industry standards. We are committed to supplying material of consistent, high quality for your critical applications.

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, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in the original packaging or in opaque containers until use.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow liquid
Identification (IR)	Conforms
Assay (Tin Content)	18.5 - 19.5 %
Specific Gravity (20°C)	1.05 - 1.15
Refractive Index (20°C)	1.490 - 1.510
Color (Gardner)	≤ 5

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