2-Bromo-5-ethyloxazole CAS 1600133-28-5
| CAS No. | 1600133-28-5 |
| Molecular Formula | C5H6BrNO |
| Molecular Weight | 176.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Bromo-5-ethyloxazole (CAS 1600133-28-5) is a high-purity analytical reference standard with the molecular formula C5H6BrNO and a molecular weight of 176.01 g/mol.
Based on its molecular formula C5H6BrNO, 2-Bromo-5-ethyloxazole contains 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 176.01 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.
As a certified reference material (CRM), 2-Bromo-5-ethyloxazole 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 | C5H6BrNO |
| Molecular Weight | 176.01 g/mol |
| Appearance | White to pale 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 5-Bromo-1,4-dimethyl-1H-1,2,3-triazole (CAS 1040275-55-5)
- 4-Bromo-3,5-dimethylisoxazole (CAS 10558-25-5)
- 1240612-08-1 2-Bromo-4,5-dimethyl-1,3-oxazole DTXSID50622352 (CAS 1240612-08-1)
- 4-Bromo-2-ethyl-2H-1,2,3-triazole (CAS 1248676-97-2)
- 3-Bromo-5,6-dihydropyridin-2(1H)-one (CAS 1258849-38-5)
- 5-Bromo-3-ethyl-isoxazole (CAS 1314961-74-4)
- 5-Bromo-2-ethyloxazole (CAS 1391740-26-3)
- 4-Bromo-1-ethyl-1H-1,2,3-triazole (CAS 1393532-87-0)
Recommended Standards
- 5-Bromo-1-methyl-1H-imidazol-2-amine (CAS 151597-83-0)
- 2-Bromo-N-2-propyn-1-ylacetamide (CAS 173208-24-7)
- 3-Amino-4-bromo-1-methylpyrazole (CAS 146941-72-2)
- 4-Bromo-5-methyl-1H-pyrazol-3-amine (CAS 1780-72-9)
- N-(2-aminoethyl)-4-methoxybenzamide (CAS 65136-87-0)
- Perfluoro(4-methyl-3,6-dioxaoctane)sulfonyl Fuoride (CAS 27744-59-8)
- Tert-butyl 4-(2-oxoimidazolidin-1-yl)piperidine-1-carboxylate (CAS 902133-63-5)
- 2-Amino-6-(difluoromethyl)-5-methylnicotinaldehyde (CAS 1806900-56-0)
- 2-Amino-6-methylbenzyl Alcohol (CAS 65658-16-4)
- (R)-tert-Butyl (1-iodobutan-2-yl)carbamate (CAS 446060-79-3)
- 3,3,4,4,5,5,6,6,6-Nonafluorohexyl (2,2,2-trifluoroethyl) carbonate (CAS 1980044-74-3)
- 4-Chloro-2-(methylthio)-6-(phenylamino)pyrimidine-5-carbaldehyde (CAS 444605-10-1)
- Diacetyl Trisulfide (CAS 861297-44-1)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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