Description

1,3-Dimercaptopropane is a versatile organic compound featuring two thiol (-SH) groups, making it a valuable building block and ligand in advanced chemical synthesis. Its primary commercial value lies in its strong chelating and nucleophilic properties, which are essential for creating complex molecules and materials. This product is particularly critical for manufacturers in the pharmaceutical, polymer, and fine chemical industries seeking reliable, high-purity intermediates for research and production.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of chelating agents, radiopharmaceuticals, and active pharmaceutical ingredients (APIs).
• Polymer & Resin Modification: Acts as a chain transfer agent, cross-linker, or modifier to impart specific properties like flexibility or adhesion in specialty polymers and epoxy resins.
• Catalyst & Ligand Synthesis: Used to prepare metal-complexing ligands for homogeneous catalysis and as a stabilizer for metal nanoparticles.
• Fine Chemical Synthesis: Serves as a crucial reagent for introducing thiol functional groups in complex organic molecules for agrochemicals and flavors/fragrances.
• Analytical Chemistry: Employed as a derivatization agent for the detection and quantification of specific metal ions or carbonyl compounds.
• Surface Treatment & Adhesives: Utilized in formulations for metal surface priming and high-performance adhesive systems.

Basic Information

Product Name	1,3-Dimercaptopropane
CAS No.	109-80-8
Molecular Formula	C3H8S2
Molecular Weight	108.22 g/mol
Synonyms	1,3-Propanedithiol; Trimethylene dimercaptan; 1,3-Dithiolpropane; 3-Mercaptopropyl mercaptan; Propane-1,3-dithiol; Dithiotrimethyleneglycol; NSC 74125; Trimethylenedithiol
EINECS	203-708-9

Quality Control

Our 1,3-Dimercaptopropane is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and titration methods, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing specific results for purity, identity, and impurities is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong oxidizing agents. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and maintain product integrity. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.528 - 1.534
Density (20°C)	1.07 - 1.09 g/mL

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