6-Bromo-3,4-difluoro-2-nitrophenol CAS 1644281-87-7
| CAS No. | 1644281-87-7 |
| Molecular Formula | C6H2BrF2NO3 |
| Molecular Weight | 253.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 253.99 g/mol gives 6-Bromo-3,4-difluoro-2-nitrophenol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 6-Bromo-3,4-difluoro-2-nitrophenol (CAS 1644281-87-7), a certified reference material (molecular formula C6H2BrF2NO3, MW 253.99 g/mol) for analytical method development and quality control.
Structurally, 6-Bromo-3,4-difluoro-2-nitrophenol (C6H2BrF2NO3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 253.99 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C6H2BrF2NO3 |
| Molecular Weight | 253.99 g/mol |
| Appearance | Off-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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 4-Bromo-3,6-difluoro-2-nitrophenol (CAS 1394130-47-2)
- 3-Bromo-4,6-difluoro-2-nitrophenol (CAS 2852767-54-3)
- 6-Bromo-4-(trifluoromethyl)nicotinaldehyde (CAS 1060805-48-2)
- 2-Bromo-6-(trifluoromethyl)isonicotinaldehyde (CAS 1060810-62-9)
- 4-Bromo-6-(trifluoromethyl)nicotinaldehyde (CAS 1060810-63-0)
- 2-Bromo-6-(trifluoromethyl)nicotinaldehyde (CAS 1192263-89-0)
- 6-Bromo-3-(trifluoromethyl)picolinaldehyde (CAS 1211529-73-5)
- 5-Bromo-2-(trifluoromethyl)nicotinaldehyde (CAS 1211536-83-2)
Recommended Standards
- 5-Iodopyrimidine-2,4,6-triol (CAS 54124-12-8)
- Tris(dimethylamino)antimony, 98% 5GR (CAS 7289-92-1)
- 2-Bromo-3,4,5,6-tetrafluorobenzonitrile (CAS 16583-02-1)
- 1-(3-Bromopyridin-2-yl)-2,2,2-trifluoroethanone (CAS 1060802-27-8)
- 2-(5-Methyl-1H-indol-3-yl)acetohydrazide (CAS 21909-52-4)
- 3-Cyclohexene-1-carboxaldehyde (CAS 100-50-5)
- 5-(O-tolyl)pyrazin-2-ol (CAS 1159818-46-8)
- 1T086B9Q1J 74839-84-2 Chiraphos, (R,R)- UNII-1T086B9Q1J (2R,3R)-Bis(diphenylphosphino)butane (R,R)-Chiraphos Cira Phosphine, 1,1'-((1R,2R)-1,2-dimethyl-1,2-ethanediyl)bis(1,1-diphenyl- (CAS 74839-84-2)
- 4,5-Dichloro-2-methyl-1H-imidazole (CAS 15965-33-0)
- 2-Methyl-N-(2-methyl-2h-1,2,3,4-tetrazol-5-yl)propanamide (CAS 62400-57-1)
- 3-Chloro-N-(4-sulfamoylphenyl)propanamide (CAS 104246-29-9)
- 2-(2,2-Dimethyl-3-(2-oxopropyl)cyclopropyl)acetic Acid (CAS 99265-61-9)
- 322647-21-2 Sodium (2R)-2,3-bis(octanoyloxy)propyl 2,3-dihydroxypropyl phosphate DTXSID40677098 (CAS 322647-21-2)
- KALA Amphipathic Peptide (CAS 187987-64-0)
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