Ethyl 1-(4-bromophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3-carboxylate CAS 1000576-69-1
| CAS No. | 1000576-69-1 |
| Molecular Formula | C11H10BrN3O3 |
| Molecular Weight | 312.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 1-(4-bromophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3-carboxylate (C11H10BrN3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Ethyl 1-(4-bromophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3-carboxylate (CAS 1000576-69-1) is a high-purity analytical reference standard with the molecular formula C11H10BrN3O3 and a molecular weight of 312.12 g/mol.
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 Ethyl 1-(4-bromophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3-carboxylate 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 Formula | C11H10BrN3O3 |
| Molecular Weight | 312.12 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 2-iodo-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine (CAS CATO-C3D-262290)
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- 3-iodo-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine (CAS CATO-C3D-262289)
- 3-bromo-4-[(5-methyl-1,2-oxazol-3-yl)methoxy]benzoic acid (CAS 1049922-12-4)
- (R)-3-Amino-3-(pyridin-3-yl)propanamide (CAS 1212954-27-2)
- tert-Butyl 3-{[(4-fluorophenyl)methyl]amino}propanoate (CAS 1221346-08-2)
- 2-Amino-4-(methylamino)phenol (CAS 72584-61-3)
- Venetoclax Impurity 89 (CAS CATO-C4X-249589)
- 2,2-Difluoro-1-(4-fluorophenyl)ethan-1-ol (CAS 2546-44-3)
- Chloro(triethylphosphine)gold(I) (CAS 15529-90-5)
- 5,5-Dimethyl-2-Hexene (CAS 36382-10-2)
- N-(p-Tolyl)-[2,2'-biquinolin]-4-amine (CAS 57115-21-6)
- Tert-butyl (1-(2-amino-4-fluorophenyl)piperidin-4-yl)carbamate (CAS 885262-26-0)
- Insulin Degludec Impurity 5 (CAS CATO-C4X-21575)
Why CATO?
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