Ethyl 5-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-carboxylate CAS 2640485-85-2
| CAS No. | 2640485-85-2 |
| Molecular Formula | C9H11BrN2O3 |
| Molecular Weight | 275.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 5-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-carboxylate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Ethyl 5-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-carboxylate (CAS 2640485-85-2), a certified reference material (molecular formula C9H11BrN2O3, MW 275.10 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H11BrN2O3, Ethyl 5-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-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 275.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 5-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-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 | C9H11BrN2O3 |
| Molecular Weight | 275.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-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 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 5-Bromo-N-(2-(dimethylamino)-2-oxoethyl)furan-2-carboxamide (CAS 1003534-48-2)
- 5-Bromo-2-(tert-butoxy)pyrimidine-4-carboxylic acid (CAS 1023812-10-3)
- 4-Bromo-N-(2-methoxyethyl)-2-nitroaniline (CAS 1036551-45-7)
- Methyl 5-bromo-4-(hydroxymethyl)-2-methoxybenzoate (CAS 1075281-20-7)
- 2-(5-bromo-3-pyridyl)-1,3-benzoxazole (CAS 1160274-30-5)
- 5-Bromo-N,3-dimethoxy-N-methylpicolinamide (CAS 1171919-90-6)
- 5-Bromo-2-(pyridin-4-yl)benzo[d]oxazole (CAS 1192018-93-1)
- 5-Bromo-2-hydroxy-6-phenylnicotinonitrile (CAS 1228182-71-5)
Recommended Standards
- Ethyl 3-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-carboxylate (CAS 2640485-86-3)
- Ethyl 5-bromo-2-hydroxy-3-methoxybenzoate (CAS 773134-68-2)
- Ethyl 2-(3-bromo-6-methyl-2-oxopyrazin-1(2H)-yl)acetate (CAS 221136-66-9)
- Methyl 2-Bromo-3,6-dimethoxybenzoate, 97% (CAS 327163-77-9)
- Piperidin-4-yl(m-tolyl)methanone (CAS 344334-10-7)
- (2E)-1-(2,5-Dichlorophenyl)-3-[4-(propan-2-yl)phenyl]prop-2-en-1-one (CAS 1003745-56-9)
- Ametantrone (CAS 64862-96-0)
- (4-Bromo-2-fluorophenyl)(3-((2,5-dihydro-1H-pyrrol-1-yl)methyl)phenyl)methanone (CAS 898749-35-4)
- 5,6-Dichloro-3-isobutylpyrimidine-2,4(1H,3H)-dione (CAS 1708380-06-6)
- 1,3-Bis(phenylphosphino)propane (CAS 28240-66-6)
- (6S)-Lipoxin A (CAS 94292-80-5)
- Febuxostat Impurity 109 (CAS CATO-C4X-1162109)
- 3-Hydroxy-3-(4-methoxyphenyl)butanal (CAS 1495080-14-2)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
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