Description

Diphenylthiocarbazide is a sulfur-containing organic compound widely used as a sensitive analytical reagent. Its primary commercial value lies in its strong chelating properties, making it an essential agent for the colorimetric detection and quantification of various metal ions. This product is critical for quality control and research laboratories in the environmental, pharmaceutical, and metallurgical sectors. It is supplied as a high-purity reagent to ensure reliable and reproducible analytical results.

Application

• Spectrophotometric Reagent: Primarily used for the sensitive colorimetric determination of heavy metals like lead, cadmium, and mercury in environmental water and soil samples.
• Analytical Chemistry: Serves as a key chelating agent in complexometric titrations and as a chromogenic reagent in trace metal analysis.
• Pharmaceutical Testing: Employed in the analysis of active pharmaceutical ingredients (APIs) and raw materials for heavy metal impurity testing, supporting compliance with pharmacopeial standards (e.g., USP, EP).
• Industrial Process Control: Used for monitoring metal ion concentrations in process streams within mining, electroplating, and alloy production facilities.
• Research & Development: A valuable tool in academic and industrial R&D for developing new analytical methods and studying metal-ligand interactions.

Basic Information

Product Name	Diphenylthiocarbazide
CAS No.	622-03-7
Molecular Formula	C13H12N4S
Molecular Weight	256.33 g/mol
Synonyms	1,5-Diphenylthiocarbazide; 1,5-Diphenylcarbazide Sulfide; Dithizone Precursor; Diphenylcarbazide Sulfide; Phenylthiocarbazide; NSC 403697; Dithizone Carbazide; Sym-Diphenylthiocarbazide
EINECS	210-722-5

Quality Control

Our Diphenylthiocarbazide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure high purity and consistency, meeting the stringent requirements for analytical reagent (AR) grade materials. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, melting point, and heavy metal content. We support compliance with global regulatory frameworks, including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This product is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flames. For long-term stability, consider storage under an inert gas such as nitrogen or argon.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility Test	Clear in specified solvents

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