1-Hydroxybenzotriazole

Name: 1-Hydroxybenzotriazole
Brand: Vaqora Chemicals
SKU: VQ-012226

About 1-Hydroxybenzotriazole

1-Hydroxybenzotriazole is an azole building block carrying the CAS registry number 2592-95-2. The compound has the formula C6H5N3O, corresponding to a molecular weight of 135.12 g/mol. Common synonyms include 1-Hydroxy-1H-benzotriazole and 1-Benzotriazolol.

Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 1 hazard statement. Review the Safety Data Sheet before use.

It is commonly used for organic synthesis and API synthesis. Our customers for this product work in pharmaceutical manufacturing, academic and industrial research and agrochemical production.

We offer 1-Hydroxybenzotriazole in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request. Custom pack sizes, bulk quantities and specific analytical data can be arranged on request.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	1-Hydroxybenzotriazole
Catalogue No.	VQ-012226
CAS Number	2592-95-2
IUPAC name	1-hydroxybenzotriazole
Molecular formula	C₆H₅N₃O
Molecular weight	135.12 g/mol
Exact mass	135.0433
Grade	Reference Standard
HSN code	2933
InChIKey	ASOKPJOREAFHNY-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)N=NN2O
PubChem CID	75771

Physical properties
Physical form	Other
LogP (XLogP3)	1.2
H-bond donors / acceptors	1 / 3
TPSA	50.9 Å²
Synonyms	1-Hydroxy-1H-benzotriazole, 1-Benzotriazolol, 1-Hydroxy-1,2,3-benzotriazole, 1-Hydroxy-1H-1,2,3-benzotriazole, 1H-1,2,3-Benzotriazol-1-ol, 1H-Benzotriazol-1-ol, Benzazimidol, HOBT, 1H-Benzotriazole, 1-hydroxy-, 1H-Benzo[d][1,2,3]triazol-1-ol, N-Hydroxybenzotriazole, benzotriazol-1-ol

Safety & hazard information (GHS)

Explosive

Signal word: Danger

Hazard statements

H203(deleted) explosive, fire, blast or projection hazard

Precautionary statements: P210, P230, P240, P250, P280, P370 + P380, P372, P373, P401, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 2592-95-2

Synthesis

1-Hydroxy benzotriazole, anhydrous, 98%

CAS: 2592-95-2
Formula: C₆H₅N₃O
MW: 135.12 g/mol

VQ-002349

Frequently asked questions

What is the CAS number of 1-Hydroxybenzotriazole?

The CAS Registry Number of 1-Hydroxybenzotriazole is 2592-95-2. It is also known as 1-Hydroxy-1H-benzotriazole, 1-Benzotriazolol, 1-Hydroxy-1,2,3-benzotriazole.

What is the molecular formula and molecular weight of 1-Hydroxybenzotriazole?

1-Hydroxybenzotriazole has the molecular formula C6H5N3O and a molecular weight of 135.12 g/mol. Its IUPAC name is 1-hydroxybenzotriazole.

Which grade and pack sizes of 1-Hydroxybenzotriazole can I order?

We supply 1-Hydroxybenzotriazole in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1-Hydroxybenzotriazole?

Yes. Every lot of 1-Hydroxybenzotriazole is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 1-Hydroxybenzotriazole be shipped internationally?

Yes. 1-Hydroxybenzotriazole is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.