H

Hydroxybenzotriazole

IUPAC: 1-hydroxybenzotriazole

C6H5N3O Laboratory Reagents CAS 2592-95-2
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Quick Reference
Formula / NotationC6H5N3O
CAS Number2592-95-2
Molecular Weight135.12
Solubility8.4 [ug/mL] (The mean of the results at pH 7.4)
AppearanceWhite solid; [Merck Index] Light yellow fine crystals with lumps; [Sigma-Aldrich MSDS]
Also Known As1-hydroxybenzotriazole; 1-Hydroxybenzotriazole; 2592-95-2; HOBt; Benzazimidol; 1H-Benzotriazole, 1-hydroxy-; A2T929DMG4; DTXSID3044627; DTXCID1024627; RefChem:76020
CategoryLaboratory Reagents

What is Hydroxybenzotriazole?

Hydroxybenzotriazole (C6H5N3O) is a laboratory reagent that appears as White solid; [Merck Index] Light yellow fine crystals with lumps; [Sigma-Aldrich MSDS]. It has a molecular weight of 135.12 g/mol. Its IUPAC name is 1-hydroxybenzotriazole.

Formula & Notation

C6H5N3O

IUPAC Name: 1-hydroxybenzotriazole

Other Names / Synonyms: 1-hydroxybenzotriazole; 1-Hydroxybenzotriazole; 2592-95-2; HOBt; Benzazimidol; 1H-Benzotriazole, 1-hydroxy-; A2T929DMG4; DTXSID3044627; DTXCID1024627; RefChem:76020

Properties & Characteristics

Appearance: White solid; [Merck Index] Light yellow fine crystals with lumps; [Sigma-Aldrich MSDS]. Molecular formula: C6H5N3O. Molecular weight: 135.12 g/mol. Solubility: 8.4 [ug/mL] (The mean of the results at pH 7.4). LogP: 1.2.

Physical Data

PropertyValue
Molecular Weight135.12
Solubility8.4 [ug/mL] (The mean of the results at pH 7.4)
AppearanceWhite solid; [Merck Index] Light yellow fine crystals with lumps; [Sigma-Aldrich MSDS]

Uses & Applications

Used as a synthetic reagent for transformations including oxidation, reduction, coupling, or functional group manipulation.

Safety Information

Hazardous reagent. May be toxic, corrosive, flammable, or reactive. Use in fume hood with full PPE. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Hydroxybenzotriazole
Formula C6H5N3O
CAS Number 2592-95-2
Molecular Weight 135.12
Synonyms 1-hydroxybenzotriazole; 1-Hydroxybenzotriazole; 2592-95-2; HOBt; Benzazimidol; 1H-Benzotriazole, 1-hydroxy-; A2T929DMG4; DTXSID3044627; DTXCID1024627; RefChem:76020

Frequently Asked Questions

Hydroxybenzotriazole (C6H5N3O) is a laboratory reagent that appears as White solid; [Merck Index] Light yellow fine crystals with lumps; [Sigma-Aldrich MSDS]. It has a molecular weight of 135.12 g/mol. Its IUPAC name is 1-hydroxybenzotriazole.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.