3-Bromo-1,2-oxazole-5-carbonitrile CAS 1241897-95-9
| CAS No. | 1241897-95-9 |
| Molecular Formula | C4HBrN2O |
| Molecular Weight | 172.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Bromo-1,2-oxazole-5-carbonitrile (CAS 1241897-95-9) is a high-purity analytical reference standard with the molecular formula C4HBrN2O and a molecular weight of 172.97 g/mol.
3-Bromo-1,2-oxazole-5-carbonitrile (C4HBrN2O) contains an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C4HBrN2O |
| Molecular Weight | 172.97 g/mol |
| Appearance | Off-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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 2-Bromooxazole-4-carbonitrile (CAS 1240608-82-5)
- 2,4-Dichloro-5-fluoropyrimidine-2-<SUP>13</SUP>C,<SUP>15</SUP>N<SUB>2</SUB> (CAS 1293994-86-1)
- 5-Bromooxazole-4-carbonitrile (CAS 1097306-76-7)
- 3-Nitrophenylboronic acid (CAS 13331-27-6)
- (Z)-1-Bromo-2,4,4,4-tetrafluorobut-1-ene (CAS 933600-87-4)
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- Azetidin-3-yl 3-methylbutanoate (CAS 1219948-57-8)
- 4-Methoxy-6-methyl-3-pyridinol (CAS 102074-64-6)
- Tert-butyl 4-(pyridine-2-sulfonamido)piperidine-1-carboxylate (CAS 1233958-28-5)
- tert-Butyl 3-(2-aminoethyl)-6-methoxy-1h-indole-1-carboxylate (CAS 1227626-16-5)
- 2-Iodo-1H-indol-4-amine (CAS 2637446-89-8)
- Semaglutide Impurity 183 (CAS 159541-28-3)
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