2,6-Dichloroindophenol sodium salt CAS 620-45-1

Table of Contents

• 1. Product Overview
• 2. Specifications & Comparative Analysis
• 3. Key Applications
• 4. Experimental Protocol
• 5. Client Success Stories
• 6. Contact for Technical Support

2,6-Dichloroindophenol Sodium Salt (CAS 620-45-1)

This redox indicator with molecular formula C₁₂H₆Cl₂NNaO₂ is widely used in biological assays and industrial quality control processes. As a sodium salt formulation, it offers enhanced solubility (87.5 g/L in water at 20°C) compared to the free acid form.

Technical Specifications

Industrial & Research Applications

3.1 Vitamin C Quantification

Primary application in titrimetric analysis of L-ascorbic acid content with detection limit of 0.02 mg/mL. USP 34-NF 29 compliant method.

3.2 Food Industry Quality Control

Used in AOAC Official Method 967.21 for citrus juice analysis. Detects vitamin C degradation during pasteurization.

3.3 Pharmaceutical Testing

Critical component in USP dissolution testing for chewable vitamin tablets. Validated for stability indicating assays.

Standard Operating Procedure

4.1 Vitamin C Titration Protocol

1. Prepare 0.02% (w/v) indicator solution
2. Standardize with known ascorbic acid concentrations
3. Endpoint determination at pink→colorless transition
4. Maintain temperature at 30±2°C

Client Implementations

5.1 NutriPure Foods (Spain)

Challenge: Inconsistent vitamin C readings in orange juice concentrate
Solution: Implemented standardized titration protocol
Outcome: Reduced measurement variance from ±15% to ±2.3%

5.2 BioPharma Labs (Germany)

Challenge: Dissolution testing variability in effervescent tablets
Solution: Optimized indicator concentration to 0.025%
Outcome: Achieved 98.7% method reproducibility

Technical Consultation

For batch-specific COA or custom formulations:
Email: info@vivalr.com
Tel: (86) 15866781826

Request quote with:
– Required quantity (grams/kg)
– Application specifics
– Regulatory requirements (USP/EP/JP)