1-(3-Bromo-5-fluorobenzyl)-4-ethoxy-1H-pyrazole CAS 2007076-87-9
| CAS No. | 2007076-87-9 |
| Molecular Formula | C12H12BrFN2O |
| Molecular Weight | 299.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(3-Bromo-5-fluorobenzyl)-4-ethoxy-1H-pyrazole (CAS 2007076-87-9), molecular formula C12H12BrFN2O and molecular weight 299.14 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-(3-Bromo-5-fluorobenzyl)-4-ethoxy-1H-pyrazole (C12H12BrFN2O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), 1-(3-Bromo-5-fluorobenzyl)-4-ethoxy-1H-pyrazole 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 | C12H12BrFN2O |
| Molecular Weight | 299.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 1-(6-Bromo-4-fluoro-1-isopropyl-1H-benzo[d]imidazol-2-yl)ethanone (CAS 2380323-06-6)
- G-R-G-E-T-P (CAS 198632-08-5)
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- 2-Hydrazinyl-1-methylpyridin-1-ium 4-methylbenzenesulfonate (CAS 1404375-16-1)
- 4-(Cyclohexyloxy)-3-methoxyphenol (CAS 1243443-39-1)
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- 2-(Tert-butoxycarbonyl)-2,3,4,5-tetrahydro-1H-benzo[c]azepine-7-carboxylic acid (CAS 1158744-01-4)
- 4-Amino-1-(3-chlorophenyl)butan-1-ol hydrochloride (CAS 1416438-54-4)
- 4-(3-Ethylphenoxy)piperidine hydrochloride (CAS 1185303-10-9)
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- Semaglutide impurity 68 (CAS CATO-C4X-222668)
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