2-Bromo-5-(difluoromethyl)benzaldehyde CAS 1782539-20-1
| CAS No. | 1782539-20-1 |
| Molecular Formula | C8H5BrF2O |
| Molecular Weight | 235.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-5-(difluoromethyl)benzaldehyde (C8H5BrF2O) contains a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Bromo-5-(difluoromethyl)benzaldehyde (CAS 1782539-20-1), molecular formula C8H5BrF2O and molecular weight 235.03 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 | C8H5BrF2O |
| Molecular Weight | 235.03 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, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 4'-Bromo-2',3'-difluoroacetophenone (CAS 1007346-28-2)
- 3’-Bromo-2’,4’-difluoroacetophenone (CAS 1210824-63-7)
- 4-Bromo-2,5-difluoroacetophenone, 97% (CAS 123942-11-0)
- 1-(2-Bromo-4,5-difluorophenyl)ethanone (CAS 127371-55-5)
- 5-Bromo-2,4-difluoro-3-methylbenzaldehyde (CAS 1378865-38-3)
- 5-Bromo-2-(2,2-difluorocyclopropyl)pyrimidine (CAS 1393572-03-6)
- 1-(4-Bromo-3,5-difluorophenyl)ethanone (CAS 1528607-78-4)
- 1-(6-Bromo-2,3-difluorophenyl)ethanone (CAS 1542563-93-8)
Recommended Standards
- 2-Bromo-6-(difluoromethyl)benzaldehyde (CAS 1780690-95-0)
- 3’-Bromo-2’,5’-difluoroacetophenone (CAS 1784372-76-4)
- 5-Bromo-2-(difluoromethyl)benzaldehyde (CAS 1779823-24-3)
- 1-(2-Bromo-4,6-difluorophenyl)ethan-1-one (CAS 1805119-78-1)
- N-[1-[2-[(4-Chloro-5-iodo-2-methoxyphenyl)amino]acetyl]-4-piperidinyl]ethenesulfonamide (CAS 1469337-91-4)
- N,N-dimethyl-2-(5-thioxo-2,5-dihydro-1H-tetrazol-1-yl)acetamide (CAS 61197-32-8)
- 2-(Cyclopentyloxy)nicotinaldehyde (CAS 902837-49-4)
- 2-Cyanomethyl-5-methylbenzoic acid (CAS 99184-74-4)
- 3-(2-Aminoethyl)-5-(2H-1,3-benzodioxol-5-ylmethylidene)-1,3-thiazolidine-2,4-dione (CAS 350509-85-2)
- (2-Methoxy-5,6,7,8-tetrahydronaphthalen-1-yl)methanol (CAS 856198-62-4)
- (S)-(+)-2-Phenylglycinol (CAS 20989-17-7)
- 7-Methoxychroman (CAS 3875-77-2)
- 2-(Methoxymethyl)piperazine (CAS 85817-29-4)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
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