5-Benzoyl-1,2-dihydro-2-phenyl-3H-1,2,4-triazol-3-one CAS 67266-66-4
| CAS No. | 67266-66-4 |
| Molecular Formula | C15H12N3O2 |
| Molecular Weight | 266.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Benzoyl-1,2-dihydro-2-phenyl-3H-1,2,4-triazol-3-one (CAS 67266-66-4), a certified reference material (molecular formula C15H12N3O2, MW 266.27 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 5-Benzoyl-1,2-dihydro-2-phenyl-3H-1,2,4-triazol-3-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 266.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), 5-Benzoyl-1,2-dihydro-2-phenyl-3H-1,2,4-triazol-3-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H12N3O2 |
| Molecular Weight | 266.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- 5-amino benzofuran (CAS 58546-89-7)
- 4-(2-Hydroxy-2-propanyl)phenylboronic Acid (CAS 886593-45-9)
- (4-Methoxyphenyl)(2-((2-methylbenzyl)thio)-4,5-dihydro-1H-imidazol-1-yl)methanone (CAS 851801-04-2)
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- Peptide Impurity 64 (CAS CATO-CPTD788964)
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