7-Bromobenzoxazol-2(3H)-one CAS 871367-14-5
| CAS No. | 871367-14-5 |
| Molecular Formula | C7H4BrNO2 |
| Molecular Weight | 214.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
7-Bromobenzoxazol-2(3H)-one (CAS 871367-14-5), molecular formula C7H4BrNO2 and molecular weight 214.02 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H4BrNO2, 7-Bromobenzoxazol-2(3H)-one contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 214.02 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H4BrNO2 |
| Molecular Weight | 214.02 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 Bromobenzoxazol Standards
Recommended Standards
- 7-Bromobenzo[d]isoxazol-3-ol (CAS 51294-59-8)
- 7-Bromofuro[3,2-c]pyridin-4(5H)-one (CAS 603301-02-6)
- 7-Bromobenzo[c][1,2,5]oxadiazol-4-amine (CAS 406224-62-2)
- 7-Bromooxazolo[4,5-c]pyridin-2-amine (CAS 2090435-32-6)
- (3R,4S)-1-Benzyl-4-methylpyrrolidine-3-carbonitrile (CAS 229322-80-9)
- Formaldehyde compound with aniline (1:1) (CAS 25214-70-4)
- 1,19-Difluorononadecan-10-One (CAS 462-17-9)
- (R)-2-(1-aminoethyl)thiazole-5-carboxylic acid (CAS 2272625-08-6)
- 82152-60-1 D-(1-~13~C)Leucine DTXSID90581595 (CAS 82152-60-1)
- 5-(4-bromophenyl)-3-(propan-2-yl)-1,2,4-oxadiazole (CAS 1120294-70-3)
- N-(4-Aminobutyl)-5-Chloro-2-Naphthalenesulfonamide HCl (CAS 88519-57-7)
- (Z)-4,4,5,5-Tetramethyl-2-styryl-1,3,2-dioxaborolane (CAS 74213-48-2)
- tert-Butyl 3-(methoxymethyl)pyrrolidine-1-carboxylate (CAS 146257-05-8)
- Semaglutide impurity 211 (CAS CATO-C4X-2226211)
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