Description

Didodecyl 3,3'-Sulphinylbispropionate is a high-purity specialty chemical widely recognized as an effective secondary antioxidant and thioester. This compound is valued for its ability to provide excellent processing stability and long-term thermal protection to polymeric materials. It is primarily utilized by manufacturers in the plastics, rubber, and polymer industries seeking to enhance the durability and performance of their products.

Application

• As a secondary antioxidant (peroxide decomposer) in polyolefins such as polypropylene (PP) and polyethylene (PE).
• To provide synergistic stabilization when combined with primary phenolic antioxidants in engineering plastics.
• For thermal stabilization during the high-temperature processing of synthetic rubbers and elastomers.
• In the formulation of adhesives and sealants to prevent oxidative degradation and extend service life.
• As a stabilizer component in wire and cable insulation compounds to ensure long-term reliability.
• Used in lubricant and fuel additives to improve oxidative stability under demanding conditions.

Basic Information

Product Name	Didodecyl 3,3'-Sulphinylbispropionate
CAS No.	17243-14-0
Molecular Formula	C30H58O4S
Molecular Weight	514.8 g/mol
Synonyms	Dilauryl 3,3'-Thiodipropionate; DLTDP; Didodecyl Thiodipropionate; Dilauryl Thiodipropionate; 3,3'-Thiobispropanoic Acid Didodecyl Ester; Antioxidant DLTDP; CAS 123-28-4 (Note: This is the CAS for Dilauryl Thiodipropionate, a closely related compound. Please verify specific grade).
EINECS	Contact for details

Quality Control

Our Didodecyl 3,3'-Sulphinylbispropionate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. A Certificate of Analysis (COA) documenting key parameters is available for every shipment to support your quality assurance protocols.

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 oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White crystalline powder or flakes
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	39 - 42 °C
Acid Value	≤ 1.0 mg KOH/g
Sulfur Content	Contact for details

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