2-(4-Bromo-1h-pyrazol-1-yl)-5-fluorobenzaldehyde CAS 1183948-13-1
| CAS No. | 1183948-13-1 |
| Molecular Formula | C10H6BrFN2O |
| Molecular Weight | 269.07 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 2-(4-Bromo-1h-pyrazol-1-yl)-5-fluorobenzaldehyde.
2-(4-Bromo-1h-pyrazol-1-yl)-5-fluorobenzaldehyde (CAS 1183948-13-1), molecular formula C10H6BrFN2O and molecular weight 269.07 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, 2-(4-Bromo-1h-pyrazol-1-yl)-5-fluorobenzaldehyde is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 269.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), 2-(4-Bromo-1h-pyrazol-1-yl)-5-fluorobenzaldehyde 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 | C10H6BrFN2O |
| Molecular Weight | 269.07 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4-Bromo-5-(2-fluorophenyl)furan-2-carbaldehyde (CAS 1138035-91-2)
- 4-(4-Bromo-1h-pyrazol-1-yl)-3-fluorobenzaldehyde (CAS 1184533-21-8)
- 3-Bromo-4,5-dihydroxybenzenesulfonic acid (CAS 119735-59-0)
- 6-Bromo-5-(4-fluorophenyl)-1,2,4-triazin-3-amine (CAS 1321517-59-2)
- 4-Bromo-5-(4-fluorophenyl)furan-2-carbaldehyde (CAS 1403566-10-8)
- 5-Bromo-6-(3-fluorophenyl)pyrimidin-4(3H)-one (CAS 1443286-95-0)
- 5-Bromo-6-(4-fluorophenyl)pyrimidin-4(3H)-one (CAS 1443288-06-9)
- 5-Bromo-6-(2-fluorophenyl)pyrimidin-4(3H)-one (CAS 1443289-93-7)
Recommended Standards
- 3-Amino-6-(4-bromo-3-fluorophenyl)-1,2,4-triazine (CAS 1029714-84-8)
- Crisaborole Impurity 49 (CAS CATO-C4X-202149)
- Ethyl 2-(2,3-dichlorophenyl)-2,2-difluoroacetate (CAS 1199773-04-0)
- Crisaborole Impurity 17 (CAS 1187188-59-5)
- Vildagliptin Racemic (CAS 1360862-63-0)
- dimethyl trans-4-oxocyclopentane-1,2-dicarboxylate (CAS 28269-03-6)
- Imidazo[1,2-a][1,3,5]triazin-4(1H)-one (CAS 138840-83-2)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(3-((2,4-dichlorobenzyl)oxy)thiophen-2-yl)hydrazine-1-carboxamide (CAS 303147-96-8)
- 3-(Perfluorophenyl)benzo[c]isoxazole (CAS 14186-66-4)
- Ampicillin Impurity 92 (CAS CATO-C4X-144392)
- 4-Chlorobenzimidoyl Ethyl Ether HCl (CAS 40546-41-6)
- 5-Fluoro-2-methylphenethyl acetate (CAS 1378814-52-8)
- Lorazepam Impurity 20 (CAS CATO-C4X-104120)
- 3X Flag Peptide trifluoroacetate salt (CAS 402750-12-3)
Why CATO?
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