Molekula
NBT (Nitroblue tetrazolium chloride) water 4% max.
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-orange redox dye widely used in biochemical assays, particularly for detecting superoxide anion production, enzyme activity studies, and live-dead cell staining. This high-purity reagent ensures reliable results in research and diagnostic applications. Nitroblue tetrazolium chloride (CAS 298-83-9) has the molecular formula C40H30Cl2N10O6 and a molecular weight of 817.64 g/mol. It must be stored between 2–8°C and handled with caution (Signal Word: Danger). 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.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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 | ≤4.0% |
| Purity | ≥98% |
| Nitrogen (N) | 16.7-17.6% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90032498 |
| 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
-
Health Hazard
GHS07
-
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) used for?
NBT is commonly used as a chromogenic substrate in biochemical assays, such as detecting superoxide radicals, NADPH oxidase activity, and in histochemical staining for electron microscopy.
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 cool, dry place, protected from light and moisture. Avoid freezing.
What grade of NBT does Molekula supply, and is it suitable for research or commercial use?
Molekula supplies **analytical-grade NBT**, suitable for research, biochemical assays, and commercial applications requiring high purity.
Can Molekula supply NBT in bulk quantities?
Yes, Molekula can provide NBT in bulk, with quantities tailored to your needs—please contact us for pricing and lead times.
What documentation comes with an order of NBT?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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.