4-Bromo-5-(2-methoxyphenyl)-1h-pyrazole-3-carboxylic acid CAS 1350453-84-7
| CAS No. | 1350453-84-7 |
| Molecular Formula | C11H9BrN2O3 |
| Molecular Weight | 297.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 297.10 g/mol gives 4-Bromo-5-(2-methoxyphenyl)-1h-pyrazole-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Bromo-5-(2-methoxyphenyl)-1h-pyrazole-3-carboxylic acid (CAS 1350453-84-7) is a high-purity analytical reference standard with the molecular formula C11H9BrN2O3 and a molecular weight of 297.10 g/mol.
Based on its molecular formula C11H9BrN2O3, 4-Bromo-5-(2-methoxyphenyl)-1h-pyrazole-3-carboxylic acid 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 297.10 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4-Bromo-5-(2-methoxyphenyl)-1h-pyrazole-3-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H9BrN2O3 |
| Molecular Weight | 297.10 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 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- Methyl 1-Acetyl-6-bromo-1H-indazole-4-carboxylate (CAS 1346597-55-4)
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- Ethyl 6-bromo-4-oxo-1,4-dihydrocinnoline-3-carboxylate (CAS 1337558-28-7)
- Methyl 5-bromo-7-oxo-1,1a,7,7a-tetrahydrocyclopropa[b]chromene-1a-carboxylate (CAS 1399660-68-4)
- 2-Mercapto-5-methoxybenzimidazole-4,6,7-d3 (CAS 1219804-80-4)
- 2,3-Dihydroimidazo[2,1-b]thiazole-5-carboxylic acid (CAS 193538-16-8)
- 1-(Benzyloxy)-2-bromo-4-nitrobenzene (CAS 191602-86-5)
- (3-Amino-1,3-dihydro-1,4,5,6,8-pentaazaacenaphthylen-3-yl)(phenyl)methanone (CAS 1638768-32-7)
- (5-((tert-Butyldimethylsilyl)oxy)pyridin-3-yl)boronic acid (CAS 1309982-37-3)
- 5,7-Dihydroxy-4-oxo-4H-chromene-2-carboxylic acid (CAS 35811-69-9)
- [3-(2-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methanol (CAS 926242-11-7)
- 2-Methylpropionic acid-1-13C 6228-78-0 Isobutyric acid-1-13C (CAS 6228-78-0)
- N'-((1H-Indol-3-yl)methylene)-2-((4-chlorobenzyl)oxy)benzohydrazide (CAS 348584-76-9)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
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