Description

Diphenylcarbazone is a versatile organic reagent primarily recognized for its role as a sensitive colorimetric indicator for the detection and quantification of metal ions. Its value lies in forming intensely colored complexes with specific metals, enabling precise analytical measurements in various scientific and industrial settings. This compound is essential for laboratories and quality control departments in the environmental, pharmaceutical, and metallurgical sectors, where accurate trace metal analysis is critical.

Application

• Spectrophotometric Determination of Metals: A key reagent for the colorimetric analysis of chromium (VI), mercury, lead, and other heavy metals in water and environmental samples.
• Complexometric Titrations: Used as a metallochromic indicator in EDTA titrations for determining ions like zinc, cadmium, and magnesium.
• Pharmaceutical Quality Control: Employed in testing for trace metal impurities in active pharmaceutical ingredients (APIs) and excipients to ensure compliance with pharmacopeial standards.
• Industrial Process Monitoring: Applied in monitoring metal ion concentrations in electroplating baths, mining effluents, and chemical manufacturing streams.
• Research & Development: Utilized in academic and industrial R&D for developing new analytical methods and studying metal-ligand interactions.
• Forensic Analysis: Aids in the detection of specific metal residues in forensic investigations.

Basic Information

Product Name	Diphenylcarbazone
CAS No.	538-62-5
Molecular Formula	C13H12N4O
Molecular Weight	240.26 g/mol
Synonyms	1,5-Diphenylcarbazone; Diphenylcarbazide, oxidized; NSC 403697; 1,5-Diphenylcarbonohydrazide; 1,3-Diphenyl-1-triazene; (E)-1,5-Diphenylformazan-3-one; Phenylazobenzene carbazone
EINECS	208-701-2

Quality Control

Our Diphenylcarbazone is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for analytical applications. Each lot is tested against rigorous in-house specifications, which typically include identity confirmation, purity assay, and suitability for its intended use as a colorimetric reagent. 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, well-ventilated area at a controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange to red-brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	157°C - 162°C
Loss on Drying	≤ 0.5%
Suitability Test (for Chromium)	Passes test

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