6-Bromo-2,3-dihydropyrazolo[5,1-b]oxazole CAS 1934827-75-4
| CAS No. | 1934827-75-4 |
| Molecular Formula | C5H5BrN2O |
| Molecular Weight | 189.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Bromo-2,3-dihydropyrazolo[5,1-b]oxazole (CAS 1934827-75-4), molecular formula C5H5BrN2O and molecular weight 189.01 g/mol, is a CATO reference standard with documented purity and traceability.
6-Bromo-2,3-dihydropyrazolo[5,1-b]oxazole (C5H5BrN2O) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 6-Bromo-2,3-dihydropyrazolo[5,1-b]oxazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H5BrN2O |
| Molecular Weight | 189.01 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 5-Bromo-3-methylpyrazin-2-ol (CAS 100047-56-1)
- 2-Bromo-5-hydrazinylpyrazine (CAS 1001050-24-3)
- (4-bromo-1H-pyrazol-1-yl)acetaldehyde (CAS 1007550-84-6)
- 6-Bromo-2-methyl-3(2H)-pyridazinone (CAS 1123169-25-4)
- 2-Bromo-5-hydrazinylpyrimidine (CAS 1174413-61-6)
- 3-Bromo-1-methylpyrazin-2(1H)-one (CAS 1187017-25-9)
- 2-Bromo-5-methoxypyrimidine (CAS 1209459-99-3)
- 2-Bromo-3-methoxypyrazine (CAS 1209905-41-8)
Recommended Standards
- (5-Bromopyridazin-3-yl)methanol (CAS 1894088-87-9)
- 6-Bromo-4-methylpyridazin-3(2H)-one (CAS 1936342-70-9)
- 1-Amino-5-bromo-1,2-dihydropyridin-2-one (CAS 1891207-59-2)
- (5-Bromopyrazin-2-yl)methanol (CAS 72788-95-5)
- 1-(4-Chlorobenzyl)-3-(4-methoxybenzyl)imidazolidine-2,4,5-trione (CAS 478262-64-5)
- 2,2,2-Trifluoroethyl n-(2-chloro-4-nitrophenyl)carbamate (CAS 1235439-39-0)
- Methyl (2S)-2-{[(tert-butoxy)carbonyl]amino}-3-(2-methylphenyl)propanoate (CAS 1201683-61-5)
- Rel-(2R,3S)-1,4-diaminobutane-2,3-diol (CAS 71232-13-8)
- Silicic acid (CAS 10279-57-9)
- 2-(2-Isopropyloxazolidin-3-yl)ethanol (CAS 28770-01-6)
- [(1s,5r)-2-benzyl-2-azabicyclo[3.1.0]hexan-1-yl]methanamine dihydrochloride (CAS 1485393-23-4)
- (4Z)-3-Methyl-4-{[(4-methylphenyl)amino]methylidene}-1-phenyl-4,5-dihydro-1H-pyrazol-5-one (CAS 57134-90-4)
- Flurbiprofen Impurity 82 (CAS 37847-52-2)
- Peptide 438 (CAS CATO-CPTD788438)
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