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Specifications:
| Application | microscopy | ||
| Storage Temperature | Ambient | ||
| Product Type | Biological Stain | Forms | Solid |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | C₁₆H₈N₂Na₂O₈S₂ |
Indigo Carmine is a high-purity synthetic blue dye primarily used in analytical chemistry as a redox indicator and pH colorimetric reagent. Supplied as an analytical-grade solid, VWR’s formulation guarantees batch-to-batch reproducibility and spectrophotometric reliability. It is widely applied in titrimetric determinations, colorimetric pH detection, and diagnostic visualization techniques in laboratories.
Key Features
- High-purity analytical reagent grade
- Stable, dark blue powder with a melting point above 300 °C
- Strong color contrast—excellent for use as a visual indicator
- Supplied in a resealable 25 g plastic bottle
- Complies with analytical standards for laboratory use
Applications
- Redox indicator in iodometric titrations
- Colorimetric pH indicator in acidic to basic conditions
- Visual marker in diagnostic and pharmaceutical applications
- Used in pharmaceutical quality control and water testing
- Traceability dye in chromatography and flow studies
Ordering Information
| Catalog Number | Pack Size | Packaging | Grade |
|---|---|---|---|
| 22537.138 | 25 g | Plastic bottle (solid) | Analytical Reagent |
VWR Indigo Carmine Analytical Reagent is a versatile, high-quality dye that supports precise, visual-based detection and analysis in various laboratory workflows. Its vivid color shift under redox or pH changes makes it ideal for titrimetric analysis, pharmaceutical testing, and diagnostic tracing, ensuring reliable and reproducible results.