Nitro blue tetrazolium chloride
Also known as: NBT, p-Nitro-Blue tetrazolium chloride, Nitrotetrazolium Blue chloride, Nitro BT, Nitro blue tetrazolium, 2,2'-Di-p-nitrophenyl-5,5'-diphenyl-3,3'-dimethoxy-4,4'-bisphenyleneditetrazolium chloride, 3,3'-(3,3'-Dimethoxy-4,4'-biphenyldiyl)bis[2-(4-nitrophenyl)-5-phenyl-2H-tetrazol-3-ium] dichloride, Ditetrazolium dye, NBT chloride, Nitroterazoium blue chloride, Tetrazolium nitroblue
Nitro blue tetrazolium chloride (CAS 298-83-9) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C40H30N10O6 and a molecular weight of 746.74400 g/mol. Key properties include a melting point of 200ºC and a density of 1.5521 (rough estimate). It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 298-83-9
- Jingsj CID
- J-32685-4
- Molecular Formula
- C40H30N10O6
- Molecular Weight
- 746.74400 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 200ºC |
|---|---|
| Density | 1.5521 (rough estimate) |
| Exact Mass | 816.172668 |
| PSA | 179.28000 |
| LogP | 1.29040 |
| Refractive Index | 1.7350 (estimate) |
| Storage Conditions | 2-8℃ |
| Additional Property | methanol: 50 mg/mL, clear, very strongly yellow | Soluble in water, ethanol and methanol. |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Customs & Trade Information
| HS Code | 32041900 |
|---|
Frequently Asked Questions
What is the CAS number of Nitro blue tetrazolium chloride?
The CAS number of Nitro blue tetrazolium chloride is 298-83-9.
What are the molecular formula and molecular weight of Nitro blue tetrazolium chloride?
Nitro blue tetrazolium chloride has molecular formula C40H30N10O6 and molecular weight 746.74400 g/mol.
Is Nitro blue tetrazolium chloride hazardous?
Nitro blue tetrazolium chloride has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Nitro blue tetrazolium chloride (CAS 298-83-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32685-4 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.