1,2,4-Triazol-5-one, 98%

Name: 1,2,4-Triazol-5-one, 98%
Brand: Vaqora Chemicals
SKU: VQ-012219

About 1,2,4-Triazol-5-one, 98%

Listed under CAS 42131-33-9, 1,2,4-Triazol-5-one is an azole building block available from Vaqora Chemicals at a purity of 98%. The compound has the formula C2HN3O, corresponding to a molecular weight of 83.05 g/mol. Systematically, it is named 1,2,4-triazol-3-one. Alternative names: 3H-1,2,4-Triazol-3-one and dihydro-3h-1,2,4-triazol-3-one.

The material typically appears as white to off-white powder or crystals. Literature values give a melting point of 220-237 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. Good laboratory practice and suitable PPE are recommended during handling.

It is commonly used for organic synthesis and API synthesis. It is used across pharmaceutical manufacturing, academic and industrial research and agrochemical production.

Available in 1 g and 5 g packs, 1,2,4-Triazol-5-one is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	1,2,4-Triazol-5-one, 98%
Catalogue No.	VQ-012219
CAS Number	42131-33-9
IUPAC name	1,2,4-triazol-3-one
Molecular formula	C₂HN₃O
Molecular weight	83.05 g/mol
Exact mass	83.012
Purity / assay	98%
HSN code	29339900
InChIKey	MDTUWBLTRPRXBX-UHFFFAOYSA-N
SMILES	C1=NC(=O)N=N1
PubChem CID	11073339

Physical properties
Physical form	Crystalline
Appearance	White to off-white powder or crystals
Melting point	220-237 °C
LogP (XLogP3)	0.3
H-bond donors / acceptors	0 / 1
TPSA	54.2 Å²

Documents

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

Frequently asked questions

What is the CAS number of 1,2,4-Triazol-5-one, 98%?

The CAS Registry Number of 1,2,4-Triazol-5-one, 98% is 42131-33-9. It is also known as 3H-1,2,4-Triazol-3-one, 1,2,4-Triazol-5-One, dihydro-3h-1,2,4-triazol-3-one.

What is the molecular formula and molecular weight of 1,2,4-Triazol-5-one, 98%?

1,2,4-Triazol-5-one, 98% has the molecular formula C2HN3O and a molecular weight of 83.05 g/mol. Its IUPAC name is 1,2,4-triazol-3-one.

Which grade and pack sizes of 1,2,4-Triazol-5-one, 98% can I order?

We supply 1,2,4-Triazol-5-one, 98% in (98%) grade, in 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1,2,4-Triazol-5-one, 98%?

Yes. Every lot of 1,2,4-Triazol-5-one, 98% 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 1,2,4-Triazol-5-one, 98% be shipped internationally?

Yes. We export 1,2,4-Triazol-5-one, 98% worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.