Description

Dithizone is a sulfur- and nitrogen-containing organic compound widely recognized as a highly sensitive and selective chelating agent for heavy metal ions. Its primary value lies in its ability to form intensely colored complexes, making it indispensable for analytical chemistry applications. This reagent is essential for industries and laboratories involved in environmental monitoring, pharmaceutical quality control, and metallurgical analysis, where precise detection and quantification of trace metals are critical.

Application

• Spectrophotometric Analysis: Primary use as a chromogenic reagent for the colorimetric determination of trace metals like lead, zinc, cadmium, mercury, and silver.
• Environmental Testing: Employed in water and soil analysis kits to detect and measure hazardous heavy metal contamination.
• Pharmaceutical QC: Used in purity testing of active pharmaceutical ingredients (APIs) and excipients for heavy metal limit tests, often referenced in pharmacopeial methods.
• Metallurgy & Mining: Applied in the extraction and process control for various ores, assisting in the analysis of metal content.
• Research & Development: Serves as a key ligand in academic and industrial research for studying metal-ligand interactions and developing new analytical methodologies.
• Food Safety: Utilized in certain analytical protocols to screen for toxic metal residues in food products and ingredients.

Basic Information

Product Name	Dithizone
CAS No.	60-10-6
Molecular Formula	C13H12N4S
Molecular Weight	256.33 g/mol
Synonyms	Diphenylthiocarbazone; 1,5-Diphenylthiocarbazone; 3-Mercapto-1,5-diphenylformazan; Phenylazothioformic Acid 2-Phenylhydrazide; Dithizon; DZ; Heavy Metal Reagent
EINECS	200-455-5

Quality Control

Our Dithizone is manufactured under strict quality management systems to ensure batch-to-batch consistency and high performance in sensitive analytical applications. Each lot undergoes comprehensive testing, including purity assay by titration or HPLC, identity confirmation (IR), and heavy metal screening. A Certificate of Analysis (COA) detailing all test results is provided with every shipment 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 a controlled room temperature (15-25°C). Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain stability and reagent performance.

Specification

Item	Specification
Appearance	Blackish-green to dark gray crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Melting Point	165 - 169 °C (dec.)
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Suitability Test (for Pb)	Passes test

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