1-Phenyl-1H-1,2,4-triazol-3(2H)-one CAS 4231-68-9

Purity 97%+In StockPharmaceutical Standards
CAS No.4231-68-9
Molecular FormulaC8H7N3O
Molecular Weight161.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Phenyl-1H-1,2,4-triazol-3(2H)-one CAS 4231-68-9 chemical structure

Description

CATO manufactures 1-Phenyl-1H-1,2,4-triazol-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.

1-Phenyl-1H-1,2,4-triazol-3(2H)-one (CAS 4231-68-9) is a high-purity analytical reference standard with the molecular formula C8H7N3O and a molecular weight of 161.16 g/mol.

Structurally, 1-Phenyl-1H-1,2,4-triazol-3(2H)-one (C8H7N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 161.16 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC8H7N3O
Molecular Weight161.16 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms3

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