5-Bromo-1,2-difluoro-3-(trifluoromethyl)benzene CAS 240122-25-2
| CAS No. | 240122-25-2 |
| Molecular Formula | C7H2BrF5 |
| Molecular Weight | 260.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to fluorine/bromine substitution, an aromatic ring system, 5-Bromo-1,2-difluoro-3-(trifluoromethyl)benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 260.99 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-Bromo-1,2-difluoro-3-(trifluoromethyl)benzene (CAS 240122-25-2), molecular formula C7H2BrF5 and molecular weight 260.99 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C7H2BrF5 |
| Molecular Weight | 260.99 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 2-Bromo-1,5-difluoro-3-(trifluoromethyl)benzene (CAS 1099597-86-0)
- 1-Bromo-4,5-difluoro-2-(trifluoromethyl)benzene (CAS 112290-04-7)
- 2-Bromo-1,4-difluoro-3-(trifluoromethyl)benzene (CAS 1242339-93-0)
- 3-Bromo-2,6-difluorobenzotrifluoride (CAS 1263377-74-7)
- 2-Bromo-1,3-difluoro-4-(trifluoromethyl)benzene (CAS 1805023-67-9)
- 3-Bromo-4,5-difluorobenzotrifluoride (CAS 1805119-88-3)
- 1-Bromo-3,5-difluoro-2-(trifluoromethyl)benzene (CAS 1805523-62-9)
- 1-Bromo-2,5-difluoro-3-(trifluoromethyl)benzene (CAS 1807071-16-4)
Recommended Standards
- 2-Bromo-4-(difluoromethyl)-1,3,5-trifluorobenzene (CAS 2091605-09-1)
- Pentafluorobenzyl Bromide (CAS 1765-40-8)
- 2-Bromo-3,4-difluoro-1-(trifluoromethyl)benzene (CAS 663601-56-7)
- 3-Chloro-2-fluoro-6-(trifluoromethyl)-benzoyl chloride (CAS 186517-45-3)
- (5-tert-Butyl-6H-[1,3,4]thiadiazin-2-yl)hydrazine (CAS 158035-17-7)
- 1-Fluoro-2-Isocyanatoethane (CAS 505-12-4)
- FMoc-iminodipropionic acid (CAS 377087-65-5)
- 6-Bromo-2-(4-chlorophenyl)-3-iodo-8-methylimidazo[1,2-a]pyridine (CAS 2404733-82-8)
- N-Nitroso Amoxicillin Impurity J Trimer (CAS CATO-C4X-114879)
- 2-Amino-N-(3-bromobenzyl)-N-ethylacetamide (CAS 1353984-12-9)
- Ethyl 2-(methoxymethyl)-4-methyl-1,3-thiazole-5-carboxylate (CAS 136204-59-6)
- 3-Cyclopropoxy-N-methyl-5-(trifluoromethyl)isonicotinamide (CAS 1243346-83-9)
- tert-Butyl (1S,4S,6S)-6-amino-2-azabicyclo[2.2.1]heptane-2-carboxylate (CAS 1290539-91-1)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
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