(R)-3-Bromo-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol CAS 2238820-77-2
| CAS No. | 2238820-77-2 |
| Molecular Formula | C6H7BrN2O2 |
| Molecular Weight | 219.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (R)-3-Bromo-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol 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.
CATO supplies (R)-3-Bromo-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol (CAS 2238820-77-2), a certified reference material (molecular formula C6H7BrN2O2, MW 219.04 g/mol) for analytical method development and quality control.
(R)-3-Bromo-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol (C6H7BrN2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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. 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.
Physical & Chemical Properties
| Molecular Formula | C6H7BrN2O2 |
| Molecular Weight | 219.04 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related R Standards
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Recommended Standards
- (6-Bromo-3-methoxypyrazin-2-yl)methanol (CAS 2639836-45-4)
- (S)-2-Bromo-3-(1H-imidazol-5-yl)propanoic acid (CAS 86288-08-6)
- (5-Bromo-3-methoxypyrazin-2-yl)methanol (CAS 2639162-66-4)
- (S)-3-bromo-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol (CAS 2409126-94-7)
- 3-Amino-N-(2,5-difluorophenyl)propanamide hydrochloride (CAS 1147202-33-2)
- 2-(6-Methyl-2-(5-methylpyridin-2-yl)imidazo[1,2-a]pyridin-3-yl)acetonitrile (CAS 88571-15-7)
- (3S)-1-(4-nitrophenyl)pyrrolidin-3-ol (CAS 791850-16-3)
- 6-Methyl-2H-chromene (CAS 18385-83-6)
- 2-Amino-5-ethylphenol (CAS 182499-90-7)
- Sodium chiniofon (CAS 8002-90-2)
- 1-(5-Methyl-1,3,4-oxadiazol-2-yl)piperidine-4-carboxylic Acid (CAS 1268692-85-8)
- 6-Aminocaproic acid methyl ester hydrochloride (CAS 1926-80-3)
- (S)-10-Amino-2,3,5,10-tetrahydrobenzo[d]pyrazolo[1,2-a][1,2]diazepin-11(1H)-one (CAS 2195361-03-4)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
Why CATO?
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