4-Bromo-2-(1h-pyrazol-1-yl)benzaldehyde CAS 1152645-08-3
| CAS No. | 1152645-08-3 |
| Molecular Formula | C10H7BrN2O |
| Molecular Weight | 251.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-2-(1h-pyrazol-1-yl)benzaldehyde (CAS 1152645-08-3) is a high-purity analytical reference standard with the molecular formula C10H7BrN2O and a molecular weight of 251.08 g/mol.
Based on its molecular formula C10H7BrN2O, 4-Bromo-2-(1h-pyrazol-1-yl)benzaldehyde 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 251.08 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H7BrN2O |
| Molecular Weight | 251.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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 | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4-Bromo-2-naphthoic Acid (CAS 1013-80-5)
- 5-Bromo-2-naphthoic Acid (CAS 1013-83-8)
- 2-Bromo-3-(pyridin-2-yloxy)pyridine (CAS 1065484-62-9)
- 5-Bromo-2h-[1,2'-bipyridin]-2-one (CAS 109822-11-9)
- 4-Bromo-2-(1h-imidazol-1-yl)benzaldehyde (CAS 1099630-02-0)
- (4-Bromo-1H-pyrazol-1-yl)(phenyl)methanone (CAS 116228-39-8)
- 4-(4-Bromo-1H-pyrazol-1-yl)benzaldehyde (CAS 1174064-63-1)
- 2-(4-Bromo-1h-pyrazol-1-yl)benzaldehyde (CAS 1174064-66-4)
Recommended Standards
- 2-(4-Bromophenyl)pyrimidin-5-ol (CAS 111336-11-9)
- 1-(2-Bromophenyl)-1H-pyrazole-4-carbaldehyde (CAS 1153042-50-2)
- 2-(2-Bromophenyl)pyrimidin-4(3H)-one (CAS 1155599-26-0)
- 5-(4-Bromopyridin-2-yl)pyrimidin-2-amine (CAS 1159815-05-0)
- Cyclononanamine (CAS 59577-26-3)
- 1,3-Difluoro-5-nitro-2-(trifluoromethoxy)benzene (CAS 1417566-41-6)
- 4-(1-(4-Chlorophenyl)-1H-benzo[d]imidazol-2-yl)benzenesulfonamide (CAS 354119-96-3)
- D-lactide-Threonine-Octreotide (CAS CATO-C4X-152017)
- 4,8-Dihydroxyquinoline-3-carboxylic acid (CAS 1131580-58-9)
- 2-Ethoxy-2-ethylbutan-1-amine (CAS 1494497-68-5)
- 8-(Trifluoromethyl)-3-azabicyclo[3.2.1]octan-8-ol hydrochloride (CAS 1315368-59-2)
- 5-Ethyl-1-(4-fluoro-3-methylphenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1239720-61-6)
- 2-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)oxazolo[4,5-c]pyridine (CAS 942589-79-9)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com