Ethyl 4-bromo-3-phenyl-1H-pyrazole-5-carboxylate CAS 179110-53-3
| CAS No. | 179110-53-3 |
| Molecular Formula | C12H11BrN2O2 |
| Molecular Weight | 295.13 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 4-bromo-3-phenyl-1H-pyrazole-5-carboxylate.
Ethyl 4-bromo-3-phenyl-1H-pyrazole-5-carboxylate (CAS 179110-53-3), molecular formula C12H11BrN2O2 and molecular weight 295.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H11BrN2O2, Ethyl 4-bromo-3-phenyl-1H-pyrazole-5-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 295.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Ethyl 4-bromo-3-phenyl-1H-pyrazole-5-carboxylate 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 | C12H11BrN2O2 |
| Molecular Weight | 295.13 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, keep tightly closed to prevent evaporation |
| 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; 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.) | 2008 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- Methyl 3-[(4-bromo-1h-pyrazol-1-yl)methyl]benzoate (CAS 1005628-24-9)
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- 4-Bromo-1-(4-methoxybenzyl)-1H-imidazole-5-carbaldehyde (CAS 101853-88-7)
- 3-(4-Bromo-1-hydroxynaphthalen-2-yl)propanoic acid (CAS 1041267-08-6)
- 5-Bromo-N-(2-(pyridin-3-yl)ethyl)furan-2-carboxamide (CAS 1090440-16-6)
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Recommended Standards
- ethyl 7-bromo-4-hydroxy-naphthalene-2-carboxylate (CAS 178876-99-8)
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- 3-(1-(4-Bromophenyl)-1H-pyrazol-4-yl)propanoic Acid (CAS 1782372-58-0)
- 3-(7-bromo-2,3,4,5-tetrahydro-1,4-benzoxazepin-4-yl)-3-oxopropanenitrile (CAS 1808444-03-2)
- 2-(Benzylthio)-4-chloropyridine (CAS 769163-29-3)
- pyrazolo[1,5-a]pyridine-5-carboxylic acid (CAS 104468-87-3)
- 2-(2-Chlorophenyl)-1H-indole (CAS 23746-79-4)
- 5-Bromo-3-(piperidin-1-yl)pyridin-2-amine (CAS 1335058-51-9)
- 2-(1,3-Dioxoisoindolin-2-yl)-N-isopropylethane-1-sulfonamide (CAS 81428-04-8)
- 1-(4-Fluorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 941869-20-1)
- [Asp5]-Atosiban TFA Salt (CAS 2014351-16-5 (free base))
- 137327-29-8 (2-Bromophenyl)(4-ethylphenyl)methanone DTXSID50641760 (CAS 137327-29-8)
- 3-(3-Bromobenzyl)cyclobutanecarboxylic acid (CAS 1399654-65-9)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
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