2-Bromo-5-chlorophenol CAS 13659-23-9
| CAS No. | 13659-23-9 |
| Molecular Formula | C6H4BrClO |
| Molecular Weight | 207.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 207.45 g/mol gives 2-Bromo-5-chlorophenol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Bromo-5-chlorophenol (CAS 13659-23-9), molecular formula C6H4BrClO and molecular weight 207.45 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Bromo-5-chlorophenol (C6H4BrClO) contains a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 207.45 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C6H4BrClO |
| Molecular Weight | 207.45 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 4-Bromo-3-chlorophenol (CAS 13631-21-5)
- 3-Bromo-4-chlorophenol (CAS 13659-24-0)
- 5-Bromo-2-chlorophenol (CAS 183802-98-4)
- 2-Bromo-3-chlorophenol (CAS 855836-62-3)
- 2-Bromo-4-chlorophenol (CAS 695-96-5)
- 3-Bromo-2-chlorophenol (CAS 863870-87-5)
- 3-Bromo-5-chlorophenol (CAS 56962-04-0)
- 2-Bromo-6-chlorophenol (CAS 2040-88-2)
Recommended Standards
- 3,5,6-Trichloropicolinonitrile (CAS 38178-74-4)
- 2,5,6-Trichloronicotinonitrile (CAS 40381-92-8)
- 2,4,6-Trichloronicotinonitrile (CAS 40381-91-7)
- 3,4,5-trichloropicolinonitrile (CAS 139485-42-0)
- 2'-Chloro-[1,1':3',1''-terphenyl]-4,4'',5'-tricarboxylic acid (CAS 2305899-76-5)
- CAS 2244085-89-8 (CAS 2244085-89-8)
- 1-(4-fluorophenyl)-3-[5-(4-nitrophenyl)-2-furyl]prop-2-en-1-one (CAS 153853-36-2)
- 1-(2-Bromoethoxy)-4-(tert-butoxy)benzene (CAS 142346-91-6)
- 4-(1H-1,2,4-triazol-1-yl)butan-2-one (CAS 884497-49-8)
- 3-methyl-3-azabicyclo[3.2.1]octan-8-amine dihydrochloride (CAS 2173992-28-2)
- N-(4-chlorophenyl)-3-((3,4-dichlorophenyl)sulfonyl)-2-hydroxy-2-methylpropanamide (CAS 338424-07-0)
- Disperse Blue 60 (CAS 12217-80-0)
- 6-Acetyl-2,3-dihydro-5H-thiazolo[3,2-a]pyrimidin-5-one (CAS 343375-23-5)
- Custom peptides (CAS CATO-CPTD788509)
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