Ethyl 5-oxo-1-phenyl-4,5-dihydro-1H-1,2,4-triazole-3-carboxylate, 97% CAS 67267-08-7
| CAS No. | 67267-08-7 |
| Molecular Formula | C11H11N3O3 |
| Molecular Weight | 233.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 5-oxo-1-phenyl-4,5-dihydro-1H-1,2,4-triazole-3-carboxylate, 97%.
CATO supplies Ethyl 5-oxo-1-phenyl-4,5-dihydro-1H-1,2,4-triazole-3-carboxylate, 97% (CAS 67267-08-7), a certified reference material (molecular formula C11H11N3O3, MW 233.22 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Ethyl 5-oxo-1-phenyl-4,5-dihydro-1H-1,2,4-triazole-3-carboxylate, 97% is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 233.22 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C11H11N3O3 |
| Molecular Weight | 233.22 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 3 |
Recommended Standards
- Ethyl 5-hydroxy-3-phenyl-1,2-oxazole-4-carboxylate (CAS 46796-31-0)
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- Ethyl 5H-[1,3]dioxolo[4,5-f]indole-6-carboxylate (CAS 94527-32-9)
- Ethyl 7-amino-4-oxo-4H-chromene-2-carboxylate (CAS 30192-21-3)
- methyl 3-formyl-1H-indole-4-carboxylate (CAS 53462-88-7)
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- 1-(3-Chloro-2-fluorophenyl)-1h-1,2,3-triazole-5-carboxylic acid (CAS 1153904-97-2)
- 2,2'-(Propane-2,2-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 1655490-55-3)
- Liraglutide Impurity 5 TFA Salt (CAS CATO-C4X-19925)
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