5-Bromo-2,4-dichlorobenzaldehyde CAS 1934803-99-2
| CAS No. | 1934803-99-2 |
| Molecular Formula | C7H3BrCl2O |
| Molecular Weight | 253.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Bromo-2,4-dichlorobenzaldehyde.
5-Bromo-2,4-dichlorobenzaldehyde (CAS 1934803-99-2) is a high-purity analytical reference standard with the molecular formula C7H3BrCl2O and a molecular weight of 253.91 g/mol.
5-Bromo-2,4-dichlorobenzaldehyde (C7H3BrCl2O) contains a hydroxyl group, an ether linkage, chlorine/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. 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.
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 | C7H3BrCl2O |
| Molecular Weight | 253.91 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.) | 1996 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 2-Bromo-3,6-dichlorobenzaldehyde (CAS 1114809-26-5)
- 4-Bromo-2,6-dichlorobenzaldehyde (CAS 111829-72-2)
- 2-Bromo-3-chlorobenzoyl chloride (CAS 116529-64-7)
- 2-Bromo-6-chlorobenzoyl chloride (CAS 116529-65-8)
- 2-Bromo-4-chlorobenzoyl chloride (CAS 116779-74-9)
- 4-Bromo-3,5-dichlorobenzaldehyde (CAS 120077-80-7)
- 5-Bromo-2,3-dichlorobenzaldehyde (CAS 1229246-37-0)
- 3-Bromo-2,6-dichlorobenzaldehyde (CAS 1254701-24-0)
Recommended Standards
- 3-Bromo-2,5-dichlorobenzaldehyde (CAS 1823608-01-0)
- 2-Bromo-3,5-dichlorobenzaldehyde (CAS 873983-89-2)
- 4-Bromo-2,5-dichlorobenzaldehyde (CAS 1349716-93-3)
- 2-Bromo-5-Chlorobenzoyl chloride (CAS 42860-16-2)
- 8-Methyl-8-azabicyclo[3.2.1]octan-3-yl 3-hydroxy-2-methyl-2-phenylpropanoate (CAS 428-07-9)
- 4-(2,3-Dichlorophenoxy)butanoic acid (CAS 7170-59-4)
- 1-(Thiophen-2-ylmethyl)azetidine-2-carboxylic acid (CAS 1042440-43-6)
- 2-(Pyridin-3-yl)-1,4a,5,12c-tetrahydro-2H,4H-benzo[5,6]chromeno[4,3-d][1,3]oxazine (CAS 251310-50-6)
- Methyl 2-aminocycloheptane-1-carboxylate (CAS 643044-67-1)
- rel-(1R,4R)-Methyl 4-aminocyclopent-2-enecarboxylate (CAS 773006-65-8)
- Norethisterone Acetate EP Impurity B (CAS 19637-28-6)
- Cyclopentyl(2,4,5-trifluorophenyl)methanol (CAS 1443302-75-7)
- 2-(4-Bromo-3-fluorophenoxy)ethan-1-ol (CAS 1467062-17-4)
- Sperm Activating Peptide, Sea Urchin (CAS 140653-27-6)
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