Description

Bis(2,3-Dihydroxypropyl) 3,3'-Thiobispropionate is a multifunctional sulfur-containing compound that serves as a versatile intermediate and additive. Its molecular structure, featuring hydroxyl and thioether groups, provides excellent compatibility and reactivity for polymer modification and synthesis. This product is primarily utilized by manufacturers in the polymer, plastics, and specialty chemical industries seeking to enhance material properties such as stability, adhesion, and cross-linking.

Application

• Polymer Stabilizer and Antioxidant: Acts as a secondary antioxidant and metal deactivator in polyolefins (e.g., PP, PE), PVC, and engineering plastics to prevent thermal degradation.
• Cross-linking Agent: Used in the production of epoxy resins, polyurethanes, and other thermosetting polymers to improve mechanical strength and chemical resistance.
• Adhesion Promoter: Enhances the bonding between polymers and inorganic materials like glass fibers or metals in composite materials.
• Lubricant and Fuel Additive: Functions as an anti-wear and extreme pressure additive in synthetic lubricants and industrial fuels.
• Pharmaceutical and Cosmetic Intermediate: Serves as a building block for synthesizing specific active pharmaceutical ingredients (APIs) and personal care product components.
• Rubber Chemical: Used as a non-staining antioxidant and peptizing agent in the production of synthetic rubber.

Basic Information

Product Name	Bis(2,3-Dihydroxypropyl) 3,3'-Thiobispropionate
CAS No.	68928-36-9
Molecular Formula	C12H24O8S
Molecular Weight	328.38 g/mol
Synonyms	3,3'-Thiodipropionic Acid Bis(2,3-dihydroxypropyl) Ester; 2,2'-[Thiobis(methylene)]bis[1,3-propanediol] Diacrylate (hydrolyzed form); DGDP; Glycerol Thiobispropionate; Bis(glyceryl) 3,3'-thiodipropionate; Thiobispropionic Acid Diglyceryl Ester; Antioxidant DGDP; 1,3-Propanediol, 2,2'-[thiobis(methylene)]bis-
EINECS	Contact for details

Quality Control

Our Bis(2,3-Dihydroxypropyl) 3,3'-Thiobispropionate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting purity, physical properties, and test results are available upon request 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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which may affect product quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.25 - 1.30
Refractive Index (20°C)	1.490 - 1.510

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