1-(5-Amino-1,2,4-oxadiazol-3-yl)-2-bromoethanone CAS 92845-73-3
| CAS No. | 92845-73-3 |
| Molecular Formula | C4H4BrN3O2 |
| Molecular Weight | 206.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(5-Amino-1,2,4-oxadiazol-3-yl)-2-bromoethanone is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-(5-Amino-1,2,4-oxadiazol-3-yl)-2-bromoethanone (CAS 92845-73-3) is a high-purity analytical reference standard with the molecular formula C4H4BrN3O2 and a molecular weight of 206.00 g/mol.
1-(5-Amino-1,2,4-oxadiazol-3-yl)-2-bromoethanone (C4H4BrN3O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-(5-Amino-1,2,4-oxadiazol-3-yl)-2-bromoethanone 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 | C4H4BrN3O2 |
| Molecular Weight | 206.00 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Amino Standards
- 4-Amino-2-bromooxazole-5-carboxamide (CAS 1240618-56-7)
- 1-Amino-5-bromouracil (CAS 127984-93-4)
- 1-(4-Amino-1,2,5-oxadiazol-3-yl)-2-bromoethanone (CAS 172469-62-4)
- 3-Amino-4-bromo-1H-pyrazole-5-carboxylic acid (CAS 351990-74-4)
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Recommended Standards
- (S)-2-Hydroxy-3-methyl-3,4-dihydro-2H-benzo[e][1,2]oxaborinine-8-carboxylic acid (CAS 2006321-69-1)
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- (R)-2-Hydroxy-3-methyl-3,4-dihydro-2H-benzo[e][1,2]oxaborinine-8-carboxylic acid (CAS 2006321-71-5)
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- 3-Hydroxy-4-nitrobenzoyl chloride (CAS 36852-58-1)
- Bis(3-bromophenyl)methanol (CAS 51339-30-1)
- Dihydrogen hexachloroosmate(IV) hexahydrate (CAS 27057-71-2)
- Chloronorbornadiene rhodium dimer (CAS 12257-42-0)
- Cyclopropyl(3-fluoropyridin-4-yl)methanamine dihydrochloride (CAS 2251053-45-7)
- 2-(5-Methyl-1h-1,2,4-triazol-3-yl)ethan-1-amine hydrochloride (CAS 1189513-57-2)
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