Nitrotetrazolium Blue Chloride (CAS 298-83-9): Comprehensive Guide & Applications
Table of Contents
- 1. Product Overview & Specifications
- 2. Key Applications & Use Cases
- 3. Technical Parameters & Comparisons
- 4. Safety & Handling Guidelines
- 5. Customer Case Studies
- 6. Request Custom Quotes
1. Product Overview & Specifications
Nitrotetrazolium Blue Chloride (CAS 298-83-9) is a water-soluble tetrazolium salt widely used as a redox indicator in biochemical assays. Key specifications include:
| Parameter | Detail |
|---|---|
| CAS Number | 298-83-9 |
| Molecular Formula | C40H30Cl2N10O6 |
| Molecular Weight | 817.65 g/mol |
| Appearance | Dark blue crystalline powder |
| Solubility | Water (50 mg/mL), DMSO, ethanol |
| Purity | ≥98% (HPLC) |
2. Key Applications & Use Cases
Primary industrial and research applications:
- Cell Viability Assays: Detects mitochondrial activity via NADPH-dependent reduction to formazan.
- Microbial Identification: Differentiates bacterial species in diagnostic kits (e.g., API strips).
- Superoxide Detection: Quantifies O2– in phagocytosis studies.
- Enzyme Activity Tests: Used in dehydrogenase and reductase assays.
3. Technical Parameters & Comparisons
| Feature | NBT Chloride | MTT | XTT |
|---|---|---|---|
| Water Solubility | High | Low | High |
| Detection Method | Colorimetric | Spectrophotometric | Colorimetric |
| Assay Duration | 15-30 mins | 2-4 hrs | 1-2 hrs |
| Price/100mg | $85 | $120 | $95 |
4. Safety & Handling Guidelines
- Storage: 2-8°C in airtight amber vials
- Hazard Codes: H315-H319-H335 (Skin/Eye irritation, respiratory sensitization)
- PPE Requirements: Lab coat, nitrile gloves, safety goggles
- Disposal: Follow local regulations for hazardous organic salts
5. Customer Case Studies
Case 1: University Medical Research Lab
Challenge: Required high-throughput screening of antifungal agents.
Solution: Implemented NBT-based superoxide detection in 96-well plates.
Result: 40% reduction in assay time vs. MTT; 92% correlation with flow cytometry data.
Case 2: Pharmaceutical QC Department
Challenge: Validate microbial limits testing per USP <61>.
Solution: Used NBT chloride in rapid species differentiation protocol.
Result: Achieved 99.3% accuracy in 8hr identification vs. traditional 24hr methods.
6. Request Custom Quotes
Contact our technical team for bulk pricing, COA, or formulation support:
Email: info@vivalr.com
Phone: (86) 15866781826



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