Description

3,3'-Dithiobispropanoic Acid Bis(2,3-Dihydroxypropyl) Ester is a sulfur-containing organic compound with a unique molecular structure featuring a disulfide bridge and multiple hydroxyl groups. This bifunctional nature makes it a valuable intermediate for synthesizing polymers, cross-linking agents, and specialty additives where controlled reactivity and enhanced material properties are required. It is particularly relevant for manufacturers in the polymer, pharmaceutical, and personal care industries seeking to develop products with specific mechanical strength, adhesion, or biocompatibility.

Application

• Polymer Modification: Acts as a cross-linking agent or chain extender in polyurethane, epoxy, and other specialty polymer systems to improve tensile strength, elasticity, and thermal stability.
• Pharmaceutical Intermediates: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring a cleavable disulfide linkage for targeted drug delivery.
• Cosmetic & Personal Care: Utilized in the formulation of hair care products (perms, straighteners) and skin care products as a conditioning agent or for its potential antioxidant properties.
• Adhesive & Sealant Formulations: Incorporated to enhance the adhesion, curing characteristics, and durability of industrial and construction adhesives.
• Lubricant & Fuel Additives: Functions as an extreme pressure (EP) additive or antioxidant in advanced lubricant and fuel formulations to reduce wear and oxidation.
• Bioconjugation & Research Chemistry: Used in biochemical research for protein modification, peptide synthesis, and the creation of stimuli-responsive materials due to its reducible disulfide bond.

Basic Information

Product Name	3,3'-Dithiobispropanoic Acid Bis(2,3-Dihydroxypropyl) Ester
CAS No.	68928-35-8
Molecular Formula	C12H22O8S2
Molecular Weight	358.43 g/mol
Synonyms	Bis(2,3-dihydroxypropyl) 3,3'-dithiodipropionate; Dithiodipropionic Acid Diglyceryl Ester; 3,3'-Dithiodipropionic Acid Bis(2,3-dihydroxypropyl) Ester; Diglycerol Dithiodipropionate; Glyceryl Dithiodipropionate; DTPA-GE; Dithiobispropanoic Acid Diglyceride Ester
EINECS	Contact for details

Quality Control

Our 3,3'-Dithiobispropanoic Acid Bis(2,3-Dihydroxypropyl) Ester is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency 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 strong oxidizing agents, strong acids, and strong bases. Due to its polyol structure, the material may be hygroscopic; minimize exposure to moisture to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Specific Gravity (20°C)	1.25 - 1.35
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.