Description

2,5-Dimercapto-1,3,4-Thiadiazole Dilithium Salt is a specialized organosulfur compound with significant utility as a high-performance additive and intermediate. Its core value lies in its unique chemical structure, which provides excellent complexing and stabilizing properties, making it a critical component in advanced material formulations. This product is essential for manufacturers in the electronics, polymer, and specialty chemical industries seeking to enhance product performance and reliability.

Application

• Electroplating Additive: Used as a brightener and leveling agent in copper and other metal electroplating baths to improve deposit quality and uniformity.
• Polymer Stabilizer: Acts as a metal deactivator and antioxidant in engineering plastics and synthetic rubbers to prevent thermal and oxidative degradation.
• Corrosion Inhibitor: Formulated into coatings and lubricants for metal surfaces to provide long-term protection against rust and corrosion.
• Lubricant Additive: Enhances the extreme pressure (EP) and anti-wear properties of industrial lubricants and greases.
• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Analytical Reagent: Employed as a chelating agent in analytical chemistry for the detection and quantification of specific metal ions.

Basic Information

Product Name	2,5-Dimercapto-1,3,4-Thiadiazole Dilithium Salt
CAS No.	140481-31-8
Molecular Formula	C2H2Li2N2S3
Molecular Weight	164.11 g/mol
Synonyms	DMTD Dilithium Salt; 1,3,4-Thiadiazole-2,5-dithiol, dilithium salt; 2,5-Dimercapto-1,3,4-thiadiazole lithium salt; Bismuthiol I lithium salt; Lithium DMTD; DMcT dilithium salt; 2,5-Dithiol-1,3,4-thiadiazole dilithium derivative; 5-Mercapto-1,3,4-thiadiazole-2-thiol dilithium salt
EINECS	Contact for details

Quality Control

Our 2,5-Dimercapto-1,3,4-Thiadiazole Dilithium Salt is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided and 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 material is hygroscopic (moisture-sensitive) and easily oxidized; it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation and to minimize quality degradation.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Lithium Content (Titration)	7.5 - 8.5%

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