1-Hydroxybenzotriazole
Also known as: 1-Hydroxy-1H-benzotriazole, HOBT, HOBt, 1-Hydroxybenzotriazole anhydrous, 1H-Benzotriazol-1-ol, Benzotriazol-1-ol, N-Hydroxybenzotriazole
1-Hydroxybenzotriazole (CAS 2592-95-2) 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. Key properties include a melting point of 156-159°C, a boiling point of 344.6±25.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 162.2±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2592-95-2
- Jingsj CID
- J-30573-7
- Molecular Formula
- C6H5N3O
- 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 | 156-159°C |
|---|---|
| Boiling Point | 344.6±25.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 162.2±23.2 °C |
| Exact Mass | 135.043259 |
| PSA | 61.80000 |
| LogP | 0.69 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.739 |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1-Hydroxybenzotriazole?
The CAS number of 1-Hydroxybenzotriazole is 2592-95-2.
What are the molecular formula and molecular weight of 1-Hydroxybenzotriazole?
1-Hydroxybenzotriazole has molecular formula C6H5N3O and molecular weight 135.123 g/mol.
What are the upstream and downstream products of 1-Hydroxybenzotriazole?
For 1-Hydroxybenzotriazole, Upstream Products: nitrobenzene, 1-chloro-2-nitrobenzene, 3,3-Difluoroazetidine hydrochloride; Downstream Products: Benzamide, 2-Phenyl-2-propanol, 1H-Benzo[d][1,2,3]triazol-1-yl 4-(5-(4-(pentyloxy)phenyl)isoxazol-3-yl)benzoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Hydroxybenzotriazole (CAS 2592-95-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30573-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.