Description

Disodium 3,3'-Thiobispropionate is an organosulfur compound widely utilized as a versatile intermediate and stabilizer. Its primary commercial value lies in its ability to act as a precursor for thioether-based antioxidants and as a key component in polymer stabilization systems. This product is essential for manufacturers in the plastics, rubber, and specialty chemical industries seeking to enhance material durability and performance.

Application

• Polymer Stabilizer: Acts as a key intermediate in the synthesis of thioether-based antioxidants and light stabilizers for polyolefins (e.g., polyethylene, polypropylene).
• Rubber Industry: Used as a non-staining antioxidant and anti-aging agent in the production of synthetic rubbers and elastomers.
• Lubricant Additive: Serves as a precursor for additives that improve the oxidation stability and thermal resistance of industrial lubricants and greases.
• Cosmetic and Personal Care: Employed as a stabilizer and chelating agent in formulations to enhance shelf-life and product integrity.
• Pharmaceutical Intermediate: Used in the synthesis of certain active pharmaceutical ingredients (APIs) and drug delivery agents.
• Adhesive and Sealant Formulations: Incorporated to prevent degradation and maintain consistency in polymer-based adhesives.

Basic Information

Product Name	Disodium 3,3'-Thiobispropionate
CAS No.	37902-14-0
Molecular Formula	C6H8Na2O4S
Molecular Weight	222.17 g/mol
Synonyms	Disodium 3,3'-Thiodipropionate; Disodium Thiodipropionate; 3,3'-Thiobispropanoic Acid Disodium Salt; Disodium 3,3'-Sulfanediyldipropanoate; DSTDP (Disodium Salt); Hostanox® SE 10 (related trade name); Antioxidant DSTDP-Na; Disodium β,β'-Thiodipropionate
EINECS	253-694-5

Quality Control

Our Disodium 3,3'-Thiobispropionate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards and consistent performance. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request to support your quality assurance and regulatory compliance needs.

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). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% Solution)	7.0 - 9.0
Heavy Metals (as Pb)	≤ 10 ppm

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