5-bromo-6-fluoro-3H-1,3-benzoxazol-2-one CAS 32273-01-1
| CAS No. | 32273-01-1 |
| Molecular Formula | C7H9BrFNO2 |
| Molecular Weight | 238.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 238.05 g/mol gives 5-bromo-6-fluoro-3H-1,3-benzoxazol-2-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5-bromo-6-fluoro-3H-1,3-benzoxazol-2-one (CAS 32273-01-1), a certified reference material (molecular formula C7H9BrFNO2, MW 238.05 g/mol) for analytical method development and quality control.
Structurally, 5-bromo-6-fluoro-3H-1,3-benzoxazol-2-one (C7H9BrFNO2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 238.05 g/mol, it falls into the medium-molecular-weight range. 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 5-bromo-6-fluoro-3H-1,3-benzoxazol-2-one 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 | C7H9BrFNO2 |
| Molecular Weight | 238.05 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
Related bromo Standards
- 6-bromo-4-fluoro-3H-1,3-benzoxazol-2-one (CAS 1780002-65-4)
- 6-bromo-7-fluoro-3H-1,3-benzoxazol-2-one (CAS 1936453-64-3)
- 4-bromo-5-fluoro-3H-1,3-benzoxazol-2-one (CAS 2156619-43-9)
- 4-bromo-6-fluoro-3H-1,3-benzoxazol-2-one (CAS 2387595-42-6)
- 4-bromo-7-fluoro-3H-1,3-benzoxazol-2-one (CAS 2387598-72-1)
- 5-bromo-4-fluoro-3H-1,3-benzoxazol-2-one (CAS 2059951-19-6)
- 5-bromo-7-fluoro-3H-1,3-benzoxazol-2-one (CAS 509147-84-6)
- 7-bromo-4-fluoro-3H-1,3-benzoxazol-2-one (CAS 2387598-51-6)
Recommended Standards
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine-2,4(1H,3H)-dione (CAS 2223030-53-1)
- 5-Iodothiophene-2-carbaldehyde (CAS 5370-19-4)
- 6-(Boc-amino)pyridine-3-boronic Acid (CAS 883231-20-7)
- 7-bromo-5-fluoro-3H-1,3-benzoxazol-2-one (CAS 32272-96-1)
- 4-Chloro-2'-methoxy-[1,1'-biphenyl]-3-ol (CAS 1261942-06-6)
- Cbz-NH-PEG6-C2-acid (CAS 1334177-80-8)
- 2,2,2-Trifluoro-1-(4-propylphenyl)ethan-1-amine (CAS 886369-29-5)
- N,N-Diphenyl-N'-(phenylsulfonyl)formimidamide (CAS 14067-87-9)
- 5-chloro-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acid (CAS 1211527-10-4)
- (2S,4S)-N-Boc-4-difluoromethoxy-Pro-OH (CAS 2380866-50-0)
- 6-Methyl-4-(pyrrolidin-1-yl)pyrazolo[1,5-a]pyrazine-2-carboxylic acid (CAS 1708080-13-0)
- tert-Butyl ((5-methyl-6-(methylthio)pyridin-3-yl)methyl)carbamate (CAS 1355215-59-6)
- 5-Acetyl-7-chloro-4-phenylpyrano[3,2-b]indol-2(5H)-one (CAS 2347639-57-8)
- Cholecystokinin Octapeptide free acid (desulfated) (H-2075.0001) (CAS 103974-46-5)
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