5-(4-Bromo-phenyl)-3-methyl-isoxazole-4-carboxylic acid CAS 91182-60-4
| CAS No. | 91182-60-4 |
| Molecular Formula | C11H8BrNO3 |
| Molecular Weight | 282.09 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 5-(4-Bromo-phenyl)-3-methyl-isoxazole-4-carboxylic acid.
CATO supplies 5-(4-Bromo-phenyl)-3-methyl-isoxazole-4-carboxylic acid (CAS 91182-60-4), a certified reference material (molecular formula C11H8BrNO3, MW 282.09 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H8BrNO3, 5-(4-Bromo-phenyl)-3-methyl-isoxazole-4-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 282.09 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-(4-Bromo-phenyl)-3-methyl-isoxazole-4-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 | C11H8BrNO3 |
| Molecular Weight | 282.09 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.) | 1983 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 5-(4-Bromo-2-methylphenyl)oxazole-4-carboxylic acid (CAS 914220-38-5)
- 5-(4-Bromophenyl)isoxazole-3-carboxylic acid hydrazide (CAS 870703-96-1)
- 5-(2-Bromo-phenyl)-3-methyl-isoxazole-4-carboxylic acid (CAS 91182-59-1)
- 5-Amino-1-(4-bromophenyl)-1h-pyrazole-4-carboxylic acid (CAS 438243-87-9)
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Why CATO?
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