Description

3,3'-Dithiobis(Propionic Acid Ethyl) Ester is a specialized organosulfur compound featuring a disulfide linkage, which is central to its reactivity and function. This chemical matters for its role as a versatile building block and cross-linking agent in advanced material synthesis and pharmaceutical research. It is needed by R&D chemists and process engineers in the polymer, agrochemical, and pharmaceutical industries for developing novel thiol-responsive materials, drug delivery systems, and functional additives.

Application

• Polymer Modification & Cross-linking Agent: Used to introduce disulfide bonds into polymer backbones, creating materials with redox-responsive or self-healing properties.
• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs that leverage disulfide chemistry for targeted release.
• Agrochemical Synthesis: Employed in the production of certain fungicides and herbicides where the disulfide moiety is critical for biological activity.
• Surface Functionalization: Acts as a linker molecule for modifying surfaces (e.g., gold nanoparticles, silicon wafers) in sensor technology and nanotechnology.
• Rubber & Elastomer Industry: Functions as a vulcanization accelerator or a modifier to enhance the thermal and mechanical properties of rubber compounds.
• Research & Development: A valuable tool compound in academic and industrial labs for studying thiol-disulfide exchange reactions and developing new organic methodologies.

Basic Information

Product Name	3,3'-Dithiobis(Propionic Acid Ethyl) Ester
CAS No.	1609-40-1
Molecular Formula	C10H18O4S2
Molecular Weight	266.38 g/mol
Synonyms	Diethyl 3,3'-dithiodipropionate; Ethyl 3,3'-dithiodipropionate; Bis(2-ethoxy-2-oxoethyl) disulfide; 3,3'-Dithiodipropionic Acid Diethyl Ester; Dithiodipropionic Acid Diethyl Ester; Diethyl Dithiodipropionate; Ethyl Dithiodipropionate; NSC 66410
EINECS	216-548-5

Quality Control

Our production of 3,3'-Dithiobis(Propionic Acid Ethyl) Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including chromatographic purity assessment and identity confirmation, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting key parameters such as assay, appearance, and impurity profiles are available upon request and are integral to our commitment to supply chain transparency and reliability.

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 compound is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere such as nitrogen or argon to preserve stability and prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Refractive Index (n20D)	1.490 - 1.500
Density (g/mL, 20°C)	1.150 - 1.180
Related Substances (HPLC)	Total impurities ≤ 2.0%

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