4-Bromo-3-chlorobenzaldehyde CAS 120077-69-2
| CAS No. | 120077-69-2 |
| Molecular Formula | C7H4BrClO |
| Molecular Weight | 219.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 219.46 g/mol gives 4-Bromo-3-chlorobenzaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Bromo-3-chlorobenzaldehyde (CAS 120077-69-2) is a high-purity analytical reference standard with the molecular formula C7H4BrClO and a molecular weight of 219.46 g/mol.
Structurally, 4-Bromo-3-chlorobenzaldehyde (C7H4BrClO) contains a hydroxyl group, an ether linkage, chlorine/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 219.46 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 | C7H4BrClO |
| Molecular Weight | 219.46 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.) | 1991 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 3-Bromo-2-chlorobenzaldehyde (CAS 1197050-28-4)
- 4-Bromo-2-chlorobenzaldehyde (CAS 158435-41-7)
- 2-Bromo-5-chlorobenzaldehyde (CAS 174265-12-4)
- 3-Bromo-5-chlorobenzaldehyde (CAS 188813-05-0)
- 5-Bromo-2-chlorobenzaldehyde (CAS 189628-37-3)
- 2-Bromo-3-chlorobenzaldehyde (CAS 74073-40-8)
- 2-Bromo-4-chlorobenzaldehyde (CAS 84459-33-6)
- 2-Bromo-6-chlorobenzaldehyde (CAS 64622-16-8)
Recommended Standards
- Bromoiodoacetamide (CAS 62872-36-0)
- 3-Bromobenzoyl chloride (CAS 1711-09-7)
- Chloroiodoacetamide (CAS 62872-35-9)
- N-(3-(ethylthio)propyl)-2,2-dimethylthietan-3-amine (CAS 1865071-63-1)
- 2-Fluoro-4-(piperidine-1-carbonyl)phenylboronic acid (CAS 874289-26-6)
- 2-(Imino(phenyl)methyl)aniline (CAS 5606-41-7)
- 4-(2-Bromo-4-fluorobenzyl)tetrahydro-2h-pyran-4-amine (CAS 1339361-21-5)
- Vonoprazan Fumarate Impurity 28 (CAS CATO-C4X-102028)
- 5-Cyclohexyl-5-oxovaleric acid (CAS 15971-96-7)
- 3-(4-Cyclopropyl-5-sulfanyl-4h-1,2,4-triazol-3-yl)propanamide (CAS 929972-39-4)
- 6-Chloro-5-(difluoromethyl)-2-fluoronicotinic acid (CAS 1805260-59-6)
- Glabrol (CAS 59870-65-4)
- 2-isothiocyanato-1,2,3,4-tetrahydronaphthalene (CAS 173996-69-5)
- Semaglutide (CAS 910463-68-2（free base）)
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