Description

2,6-Dichloroindophenol Sodium Salt is a vital redox indicator and biochemical reagent widely used in analytical chemistry. Its primary value lies in its distinct color change upon reduction, making it an essential tool for quantifying ascorbic acid (Vitamin C) and other reducing agents. This compound is critical for quality control laboratories in the pharmaceutical, food & beverage, and nutraceutical industries, as well as for research institutions conducting biochemical assays.

Application

• Vitamin C (Ascorbic Acid) Assay: The primary and most significant application, serving as the standard redox indicator in titrimetric and spectrophotometric methods for determining Vitamin C content in pharmaceuticals, foods, and beverages.
• Biochemical Research: Used as an electron acceptor in studies of enzyme activity, particularly for dehydrogenases, and in various redox-based assay systems.
• Analytical Chemistry: Employed as a redox indicator in titrations and for the detection of reducing sugars and other biologically active reducing compounds.
• Diagnostic Reagent: A key component in certain clinical diagnostic kits for measuring antioxidant capacity or specific metabolic functions in biological samples.
• Food & Beverage Quality Control: Essential for standardized testing of Vitamin C fortification and natural content to ensure product labeling compliance and nutritional value.
• Pharmaceutical Quality Assurance: Used in the potency testing of ascorbic acid preparations and other redox-sensitive active pharmaceutical ingredients (APIs).

Basic Information

Product Name	2,6-Dichloroindophenol Sodium Salt
CAS No.	620-45-1
Molecular Formula	C12H6Cl2NNaO2
Molecular Weight	290.08 g/mol
Synonyms	2,6-Dichloroindophenol, Sodium Salt; Dichlorophenolindophenol Sodium Salt; DCIP Sodium Salt; Tillmans' Reagent; Sodium 2,6-Dichloroindophenolate; 2,6-Dichloro-4-[(4-hydroxyphenyl)imino]cyclohexa-2,5-dien-1-one Sodium Salt; Vitamin C Indicator; EINECS 210-643-8
EINECS	210-643-8

Quality Control

Our 2,6-Dichloroindophenol Sodium Salt is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure high purity, consistent performance, and compliance with relevant pharmacopeial standards (e.g., USP, EP) where applicable. A detailed Certificate of Analysis (COA) documenting identity, purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and reliability for your critical applications.

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); therefore, the container must be kept tightly sealed in a dry environment to prevent absorption of atmospheric moisture, which can affect performance and stability.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Loss on Drying	≤ 2.0 %
Residue on Ignition (Sulfated Ash)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Specific Absorbance (E1cm1% at 600-610 nm)	To be specified per grade
Performance Test (Vitamin C Titration)	Conforms

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