7-Bromo-5-methylbenzo[d]oxazol-2(3H)-one CAS 855273-64-2
| CAS No. | 855273-64-2 |
| Molecular Formula | C8H6BrNO2 |
| Molecular Weight | 228.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 228.04 g/mol gives 7-Bromo-5-methylbenzo[d]oxazol-2(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 7-Bromo-5-methylbenzo[d]oxazol-2(3H)-one (CAS 855273-64-2), a certified reference material (molecular formula C8H6BrNO2, MW 228.04 g/mol) for analytical method development and quality control.
7-Bromo-5-methylbenzo[d]oxazol-2(3H)-one (C8H6BrNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. 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), 7-Bromo-5-methylbenzo[d]oxazol-2(3H)-one 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 | C8H6BrNO2 |
| Molecular Weight | 228.04 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 6-Bromo-1H-benzo[d][1,3]oxazin-2(4H)-one (CAS 1017783-09-3)
- 4-Bromo-3-hydroxyindolin-2-one (CAS 1020998-97-3)
- 6-Bromo-3-hydroxy-2,3-dihydro-1h-indol-2-one (CAS 1021021-75-9)
- 3-(6-Bromo-3-pyridyl)acrylic Acid (CAS 1035123-89-7)
- (6-bromo-1,3-benzoxazol-2-yl)methanol (CAS 1086393-57-8)
- 5-Bromo-N-(prop-2-yn-1-yl)furan-3-carboxamide (CAS 1090581-90-0)
- trans-3-Bromo-β-nitrostyrene (CAS 115665-95-7)
- 6-Bromo-2,3-dihydro-pyrano[2,3-b]pyridin-4-one (CAS 1196155-15-3)
Recommended Standards
- 7-Bromo-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 321436-06-0)
- 8-Bromo-2H-1,4-benzoxazin-3(4H)-one (CAS 688363-48-6)
- 7-Amino-6-bromoisobenzofuran-1(3H)-one (CAS 886494-76-4)
- Erlotinib Impurity 89 (CAS CATO-C4X-106989)
- 2-Oxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 1748-63-6)
- 4-Bromo-6-isopropyl-1H-indole (CAS 1000343-72-5)
- 4-sulfanyl-2-(trifluoromethyl)benzonitrile (CAS 110888-22-7)
- 1-(6-Bromo-4-methoxypyridin-2-yl)ethanone (CAS 1393575-09-1)
- Finerenone Impurity 86 (CAS CATO-C4X-288086)
- 8-Chloro-[1,2,4]triazolo[1,5-a]quinoxalin-4-amine (CAS 679396-29-3)
- 2-Benzyl-4-(3-fluorophenyl)-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 860786-31-8)
- Daprodustat Impurity 12 (CAS 10468-40-3)
- Ethyl 1-ethyl-2-methyl-4-oxo-1,4-dihydroquinoline-6-carboxylate (CAS 1352486-68-0)
- [γ-Glu]15 Semaglutide (CAS CATO-C4X-222690)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com