4-Hydroxybenzotriazole
4-羟基苯并三唑
Also known as: 4-Hydroxy-1H-benzotriazole, 1H-Benzotriazol-4-ol, 1H-1,2,3-Benzotriazol-4-ol, 1H-Benzotriazol-7-ol, 1H-1,2,3-Benzotriazol-7-ol, 1H-benzo[d][1,2,3]triazol-4-ol, Hydroxybenzotriazole, 4-Hydroxybenztriazole, 1,2-dihydrobenzotriazol-4-one
4-Hydroxybenzotriazole (CAS 26725-51-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H5N3O and a molecular weight of 135.123 g/mol. It is also known as 4-Hydroxy-1H-benzotriazole, 1H-Benzotriazol-4-ol and 1H-1,2,3-Benzotriazol-4-ol. Key properties include a melting point of 224ºC (dec.), a boiling point of 473.0±18.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 239.9±21.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 26725-51-9
- Jingsj CID
- J-1012707-8
- Molecular Formula
- C6H5N3O
- Chinese Name
- 4-羟基苯并三唑
- Molecular Weight
- 135.123 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 224ºC (dec.) |
|---|---|
| Boiling Point | 473.0±18.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 239.9±21.2 °C |
Frequently Asked Questions
What is the CAS number of 4-Hydroxybenzotriazole?
The CAS number of 4-Hydroxybenzotriazole is 26725-51-9.
What are the molecular formula and molecular weight of 4-Hydroxybenzotriazole?
4-Hydroxybenzotriazole has molecular formula C6H5N3O and molecular weight 135.123 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Hydroxybenzotriazole (CAS 26725-51-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1012707-8 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.