Description

2,6-Dibromophenolindophenol Sodium Salt is a high-purity redox indicator and biochemical reagent essential for precise analytical measurements. Its primary value lies in its distinct color change upon reduction, making it a critical component in standardized titration assays and enzymatic activity tests. This compound is particularly vital for quality control laboratories and research institutions in the pharmaceutical, food & beverage, and biotechnology sectors that require reliable and consistent analytical endpoints.

Application

• Redox Titration Indicator: Used as a visual endpoint indicator in the determination of ascorbic acid (Vitamin C) and other reducing agents.
• Biochemical Assays: Serves as an electron acceptor in dehydrogenase enzyme assays, such as those for lactate dehydrogenase (LDH).
• Microbiological Testing: Employed in culture media and diagnostic kits for bacterial identification and metabolic studies.
• Food & Beverage Analysis: A key reagent in official methods for quantifying Vitamin C content in juices, fortified foods, and supplements.
• Pharmaceutical Quality Control: Used in compendial methods (e.g., USP, EP) for the assay of raw materials and finished drug products containing reducing substances.
• Research & Development: Applied in biochemical research to study electron transport chains, antioxidant capacity, and redox metabolism.

Basic Information

Product Name	2,6-Dibromophenolindophenol Sodium Salt
CAS No.	5415-23-6
Molecular Formula	C12H6Br2NNaO2
Molecular Weight	378.98 g/mol
Synonyms	2,6-Dibromo-4-[(4-hydroxyphenyl)imino]-2,5-cyclohexadien-1-one Sodium Salt; 2,6-Dibromophenolindophenol Sodium Salt; Sodium 2,6-Dibromophenolindophenolate; DBPS; DCPIP Sodium Salt; Tillmans' Reagent Sodium Salt; Sodium 2,6-Dibromo-N-(4-hydroxyphenyl)-1,4-benzoquinone imine; Ascorbic Acid Indicator
EINECS	226-548-7

Quality Control

Our 2,6-Dibromophenolindophenol Sodium Salt is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for analytical and biochemical applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and performance is provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical workflows.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed in a low-humidity environment to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0 %
Solubility (1% in Water)	Clear, deep blue solution
pH (1% Aqueous Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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