Description

1,5-Diphenylcarbazide is a versatile organic reagent widely recognized for its exceptional sensitivity and selectivity as a chromogenic agent. Its primary commercial value lies in its ability to form intensely colored complexes with specific metal ions, making it indispensable for precise analytical detection and quantification. This compound is a critical raw material for quality control laboratories and manufacturers in the environmental monitoring, pharmaceutical, and metallurgical industries, where accurate trace metal analysis is paramount.

Application

• Chromogenic Reagent for Heavy Metal Detection: Primarily used for the spectrophotometric determination of hexavalent chromium (Cr(VI)) in water and environmental samples, a key parameter for regulatory compliance.
• Analytical Chemistry Standard: Serves as a reference standard and key component in test kits and laboratory procedures for the analysis of metals like mercury, cadmium, and lead.
• Pharmaceutical Impurity Testing: Employed in pharmacopeial methods to detect and quantify specific metal catalyst residues in active pharmaceutical ingredients (APIs) and finished drug products.
• Industrial Process Control: Used for monitoring metal ion concentrations in industrial effluents, plating baths, and alloy production to ensure process efficiency and environmental safety.
• Research & Development: Utilized in academic and industrial R&D for developing new analytical methodologies and studying metal-ligand interaction chemistry.
• Quality Assurance in Manufacturing: Applied in the quality control of chemicals, polymers, and electronic materials where trace metal contamination must be rigorously controlled.

Basic Information

Product Name	1,5-Diphenylcarbazide
CAS No.	140-22-7
Molecular Formula	C13H14N4O
Molecular Weight	242.28 g/mol
Synonyms	1,5-Diphenylcarbazide; Diphenylcarbazide; DPC; N,N'-Diphenylcarbazide; sym-Diphenylcarbazide; 1,5-Diphenylcarbohydrazide; Carbazide, 1,5-diphenyl-; 1,3-Diphenyl-1,5-pentanetetraone tetrahydrazone (obsolete)
EINECS	205-409-5

Quality Control

Our 1,5-Diphenylcarbazide is manufactured under a strict quality management system to ensure batch-to-batch consistency and reliability for sensitive analytical applications. Each lot undergoes comprehensive testing, including identification, purity assay, and specific tests for suitability as a chromogenic reagent. A Certificate of Analysis (COA) detailing all specifications and 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 (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain reagent performance.

Specification

Item	Specification
Appearance	White to light pink crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	168°C - 172°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.