7-Bromo-2-(4-hydroxyphenyl)benzo[d]oxazol-5-ol CAS 440122-66-7
| CAS No. | 440122-66-7 |
| Molecular Formula | C13H8BrNO3 |
| Molecular Weight | 306.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 306.11 g/mol gives 7-Bromo-2-(4-hydroxyphenyl)benzo[d]oxazol-5-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-Bromo-2-(4-hydroxyphenyl)benzo[d]oxazol-5-ol (CAS 440122-66-7), molecular formula C13H8BrNO3 and molecular weight 306.11 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 7-Bromo-2-(4-hydroxyphenyl)benzo[d]oxazol-5-ol (C13H8BrNO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 306.11 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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-2-(4-hydroxyphenyl)benzo[d]oxazol-5-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.
Physical & Chemical Properties
| Molecular Formula | C13H8BrNO3 |
| Molecular Weight | 306.11 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 5-Bromo-2-deoxycytidine (CAS 1022-79-3)
- Methyl 3-bromo-9H-pyrrolo[2,3-b:5,4-c']dipyridine-6-carboxylate, 97% (CAS 1200130-50-2)
- Ethyl 3-(5-bromo-2-methyl-4-nitro-1H-imidazol-1-yl)propanoate (CAS 139975-80-7)
- (2-Bromo-5-nitrophenyl)(phenyl)methanone (CAS 183110-88-5)
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- 3-Bromo-4-nitrobenzophenone (CAS 760192-92-5)
- 4-Bromo-4'-nitrobenzophenone (CAS 40292-15-7)
Recommended Standards
- 5,6-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-2-ol (CAS 2791272-22-3)
- n-(1h-Benzo[d]imidazol-2-yl)-5-bromofuran-2-carboxamide (CAS 313231-24-2)
- Crisaborole Impurity 23 (CAS CATO-C4X-202123)
- 3-Chloro-2-[(3-chlorophenyl)methyl]-5-(trifluoromethyl)pyridine (CAS 339010-80-9)
- 2-Bromo-1-(difluoromethyl)-3,5-difluorobenzene (CAS 1805422-87-0)
- 2,3-Dibromo-5-fluorobenzyl alcohol (CAS 1806354-01-7)
- 1-(Bromomethyl)-1-propylcyclohexane (CAS 1482636-30-5)
- 2,2,4-Trimethylpyrrolidine Hydrochloride (CAS 1390654-80-4)
- (3-Fluoro-4-methoxypyridin-2-yl)methanamine (CAS 1256812-75-5)
- 2-(2-Chloro-6-fluorophenyl)-3-oxobutanenitrile (CAS 93839-17-9)
- N-[(4-Chlorophenyl)methylene]-2-cyano-3-(dimethylamino)acrylohydrazide (CAS 343375-99-5)
- (3AS,8bR)-2-(2-(Diphenylphosphanyl)phenyl)-4,4-dimethyl-3a,8b-dihydro-4H-indeno[2,1-d]oxazole (CAS 195192-46-2)
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