Molekula
NBT (Nitroblue tetrazolium chloride)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Nitroblue tetrazolium chloride (NBT) is a yellow, water-soluble dye widely used as a histochemical stain and redox indicator in biochemical assays, particularly for detecting superoxide anion production and in cell viability tests. It forms a dark blue diformazan precipitate upon reduction, enabling qualitative and quantitative analysis in research and diagnostics. Catalogue details: CAS 298-83-9, molecular formula C40H30Cl2N10O6, molecular weight 817.64 g/mol, stored at 2–8°C. Hazard classification includes the signal word Danger due to its carcinogenicity classification (H350, may cause cancer). Molekula supplies NBT from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 g — £77.60 per pack ex VAT · £93.12 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Yellow powder |
| Water | ≤ 0.5% |
| Heavy metals | ≤ 5ppm |
| Assay | ≥ 98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
For research use only. Not for human use.
Identification
| Property | Value |
|---|---|
| SKU | 13727374 |
| CAS Number | 298-83-9 |
| Molecular Formula | C40H30Cl2N10O6 |
| Molecular Weight | 817.64 |
| SMILES | COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]3=NC(=NN3C4=CC=C(C=C4)[N+](=O)[O-])C5=CC=CC=C5)OC)[N+]6=NC(=NN6C7=CC=C(C=C7)[N+](=O)[O-])C8=CC=CC=C8 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933997500 |
| Tariff Code | 2933998090 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H350 May cause cancer
- H371 May cause damage to organs
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is NBT (Nitroblue tetrazolium chloride) commonly used for?
NBT is primarily used as a redox indicator in biochemical assays, including detection of superoxide radicals, NADH/NADPH assays, and as a substrate in histochemical staining for enzymes like NADPH oxidase.
What is the chemical formula and molecular weight of NBT?
The chemical formula is C₄₀H₃₀Cl₂N₁₀O₆, and the molecular weight is 817.64 g/mol.
How should NBT be stored?
Store NBT at 2–8°C in a dry, well-ventilated area, protected from light and moisture. Follow local hazardous material regulations.
What purity grades of NBT does Molekula supply?
Molekula supplies analytical grade NBT, suitable for research and biochemical applications requiring high purity.
Can Molekula supply NBT in bulk quantities?
Yes, we can provide NBT in bulk, with quantities and packaging tailored to your requirements—contact us for pricing and lead times.
What documentation is provided with an NBT order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet for traceability and compliance.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.