Description

Sodium Tetrathionate Dihydrate is an inorganic salt of tetrathionic acid, widely utilized as a key reagent in biochemical and analytical research. Its primary value lies in its role as a specific substrate for the enzyme rhodanese (thiosulfate sulfurtransferase) and as a sulfur donor in various redox studies. This compound is essential for researchers and manufacturers in the fields of enzymology, pharmaceutical development, and diagnostic kit production, where precise sulfur chemistry is required.

Application

• Enzymology Research: As a specific substrate for studying the kinetics and mechanism of the enzyme rhodanese (thiosulfate sulfurtransferase).
• Biochemical Assays: Used in the development and calibration of diagnostic assays that measure sulfurtransferase activity.
• Pharmaceutical Intermediates: Serves as a sulfur-transferring agent in the synthesis of certain sulfur-containing active pharmaceutical ingredients (APIs).
• Analytical Chemistry: Employed as a standard or reagent in titrimetric and colorimetric methods for the determination of sulfur compounds.
• Microbiology: Used in studies of bacterial metabolism, particularly for organisms involved in sulfur cycling.
• Nutritional Research: Investigated for its role in cyanide detoxification pathways in biological systems.

Basic Information

Product Name	Sodium Tetrathionate Dihydrate
CAS No.	13721-29-4
Molecular Formula	Na2S4O6 · 2H2O
Molecular Weight	306.23 g/mol
Synonyms	Sodium Tetrathionate Dihydrate; Tetrathionic Acid Disodium Salt Dihydrate; Disodium Tetrathionate Dihydrate; Sodium Tetrathionate; Na2S4O6·2H2O; Tetrathionate Sodium Salt; Sodium Tetrathionate(VI) Dihydrate
EINECS	Contact for details

Quality Control

Our Sodium Tetrathionate Dihydrate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Na2S4O6·2H2O)	≥ 98.0 %
pH (5% solution)	5.0 - 7.0
Water (Karl Fischer)	10.0 - 12.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %

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