2-Bromo-3-chloro-5-fluorobenzaldehyde CAS 1805210-20-1
| CAS No. | 1805210-20-1 |
| Molecular Formula | C7H3BrClFO |
| Molecular Weight | 237.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-3-chloro-5-fluorobenzaldehyde (CAS 1805210-20-1), molecular formula C7H3BrClFO and molecular weight 237.45 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Bromo-3-chloro-5-fluorobenzaldehyde (C7H3BrClFO) contains a hydroxyl group, an ether linkage, fluorine/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 237.45 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-Bromo-3-chloro-5-fluorobenzaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H3BrClFO |
| Molecular Weight | 237.45 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.) | 1995 |
| Halogen Content | F/Cl/Br-containing |
Related Bromo Standards
- 2-Bromo-3-fluorobenzoyl chloride (CAS 1000339-91-2)
- 2-Bromo-6-fluorobenzoyl chloride (CAS 1020718-20-0)
- 2-Bromo-3-chloro-6-fluorobenzaldehyde (CAS 1056264-66-4)
- 2-Bromo-4-chloro-5-fluorobenzaldehyde (CAS 1067882-63-6)
- 6-Bromo-3-chloro-2-fluorobenzaldehyde (CAS 1114809-02-7)
- 3-Bromo-2-chloro-6-fluorobenzaldehyde, 97% (CAS 1114809-11-8)
- 2-Bromo-5-fluorobenzoyl chloride (CAS 111771-13-2)
- 2-Bromo-4-chloro-6-fluorobenzaldehyde (CAS 1135531-73-5)
Recommended Standards
- 2-Bromo-4-chloro-3-fluorobenzaldehyde (CAS 1785320-57-1)
- 3-Bromo-5-chloro-4-fluorobenzaldehyde (CAS 1806058-19-4)
- 3-bromo-4-chloro-5-fluorobenzaldehyde (CAS 1784187-42-3)
- 6-Bromo-2-chloro-3-fluorobenzaldehyde (CAS 1806058-24-1)
- 5-Amino-6-bromonicotinic acid (CAS 1292765-17-3)
- 5-Methyl-2-phenyl-4-vinyloxazole (CAS 1260677-94-8)
- 3-(3-Phenylisoxazol-5-yl)propan-1-ol (CAS 54901-66-5)
- (S)-Ethyl 3-cyano-3-hydroxypropanoate (CAS 132839-91-9)
- Cefcapene Impurity 18 (CAS CATO-C4X-182418)
- 3-Amino-5-cyanopicolinic acid (CAS 1386986-24-8)
- 6-Methyl-1H-pyrrolo[3,2-b]pyridine-2-carboxylic acid (CAS 1242427-62-8)
- (6-Methoxy-5-methylpyridin-3-yl)methanamine (CAS 1033691-32-5)
- n-(1-(Furan-2-yl)propan-2-yl)cyclopropanecarboxamide (CAS 1235094-15-1)
- Semaglutide impurity 36 (CAS CATO-C4X-222636)
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