6-Bromo-3-(5-methyl-1,3,4-oxadiazol-2-yl)-4H-chromen-4-one CAS 293740-63-3
| CAS No. | 293740-63-3 |
| Molecular Formula | C12H7BrN2O3 |
| Molecular Weight | 307.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H7BrN2O3, 6-Bromo-3-(5-methyl-1,3,4-oxadiazol-2-yl)-4H-chromen-4-one 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 307.10 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.
6-Bromo-3-(5-methyl-1,3,4-oxadiazol-2-yl)-4H-chromen-4-one (CAS 293740-63-3) is a high-purity analytical reference standard with the molecular formula C12H7BrN2O3 and a molecular weight of 307.10 g/mol.
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 | C12H7BrN2O3 |
| Molecular Weight | 307.10 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 1-(2-Fluorophenyl)-1H-pyrrole-2,5-dione (CAS 63566-53-0)
- (1R,2R)-N-Methyl-2-(pyridin-3-yl)tetrahydro-2H-thiopyran-2-carbothioamide 1-oxide (CAS 132562-26-6)
- 6-Fluoro-2-propylquinolin-4-amine (CAS 1189106-32-8)
- 2-Bromo-N-(4-chloro-5H-1,2,3-dithiazol-5-ylidene)-4-nitroaniline (CAS 220301-84-8)
- (3S,5R)-3-Amino-5-hydroxy-piperidine-1-carboxylic acid benzyl ester (CAS 2165622-15-9)
- 2-Cyclopropylquinazolin-4(3H)-one (CAS 459796-19-1)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
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