[1,2,4]Triazolo[4,3-a]pyrimidin-3(2H)-one CAS 63206-77-9

Purity 97%+In StockPharmaceutical Standards
CAS No.63206-77-9
Molecular FormulaC5H4N4O
Molecular Weight136.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

[1,2,4]Triazolo[4,3-a]pyrimidin-3(2H)-one CAS 63206-77-9 chemical structure

Description

Owing to an amide group, a hydroxyl group, an ether linkage, [1,2,4]Triazolo[4,3-a]pyrimidin-3(2H)-one is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 136.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

[1,2,4]Triazolo[4,3-a]pyrimidin-3(2H)-one (CAS 63206-77-9), molecular formula C5H4N4O and molecular weight 136.11 g/mol, is a CATO reference standard with documented purity and traceability.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures [1,2,4]Triazolo[4,3-a]pyrimidin-3(2H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC5H4N4O
Molecular Weight136.11 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1975
Nitrogen Atoms4

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