2-Bromooxazole-5-carboxylic acid hydrate CAS 1619264-49-1
| CAS No. | 1619264-49-1 |
| Molecular Formula | C4H2BrNO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Bromooxazole-5-carboxylic acid hydrate 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.
2-Bromooxazole-5-carboxylic acid hydrate (CAS 1619264-49-1), molecular formula C4H2BrNO3H2O and molecular weight 209.98 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Bromooxazole-5-carboxylic acid hydrate (C4H2BrNO3H2O) is characterized by a carbohydrate-derived structure, an amide group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C4H2BrNO3 H2O |
| Molecular Weight | 209.98 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromooxazole Standards
- 5-Bromooxazole (CAS 1060812-80-7)
- Ethyl 2-bromooxazole-5-carboxylate (CAS 1060816-22-9)
- 2-Bromooxazole-4-carbaldehyde (CAS 1092351-90-0)
- Methyl 2-bromooxazole-5-carboxylate (CAS 1092351-96-6)
- 2-Bromooxazole-5-carbaldehyde (CAS 1092352-00-5)
- Ethyl 5-bromooxazole-4-carboxylate (CAS 1097306-75-6)
- 5-Bromooxazole-4-carbonitrile (CAS 1097306-76-7)
- Methyl 4-bromooxazole-5-carboxylate (CAS 1134560-77-2)
Recommended Standards
- 7-Bromo-6-hydroxyquinoline-5-carbaldehyde (CAS 1378260-81-1)
- 2-Amino-7,7-dimethyl-7,8-dihydro-5H-pyrano[4,3-b]pyridin-5-one (CAS 2673369-03-2)
- Dextromethorphan Impurity 6 (CAS 94006-06-1)
- tert-butyl N-(2-methoxyethyl)carbamate (CAS 30751-70-3)
- Ethyl 7-bromo-1H-indazole-5-carboxylate (CAS 1355170-90-9)
- (3S)-3,6-Dimethylmorpholine-2,5-dione (CAS 202923-63-5)
- Ethyl 7-Nitroindole-3-carboxylate (CAS 2089292-49-7)
- 1-Ethyl-4,4-difluorocyclohexane-1-carboxylic acid (CAS 1389315-01-8)
- 7-Methyloctyl acetate (CAS 40379-24-6)
- Neuropeptide W-23 (human) (CAS 383415-79-0)
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