4-Bromo-3,5-dichlorophenol CAS 1940-28-9
| CAS No. | 1940-28-9 |
| Molecular Formula | C6H3BrCl2O |
| Molecular Weight | 241.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Bromo-3,5-dichlorophenol (CAS 1940-28-9) is a high-purity analytical reference standard with the molecular formula C6H3BrCl2O and a molecular weight of 241.90 g/mol.
The molecular framework of 4-Bromo-3,5-dichlorophenol (C6H3BrCl2O) is characterized by a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 4-Bromo-3,5-dichlorophenol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H3BrCl2O |
| Molecular Weight | 241.90 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.) | 1957 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 3-Bromo-2,5-dichlorophenol (CAS 1034709-00-6)
- 6-bromo-3,5-dichloropyridin-2-amine (CAS 105751-20-0)
- 5-Bromo-4,6-dichloro-2-methylpyrimidine (CAS 1086376-43-3)
- 4-Bromo-3,5-dichloropyridin-2-amine (CAS 1232430-80-6)
- 2-Bromo-5,6-dichloropyridin-3-amine (CAS 1253889-50-7)
- 2-Bromo-3,5-dichlorophenol (CAS 13659-22-8)
- 3-Bromo-2,6-dichloropyridin-4-amine (CAS 1404439-00-4)
- 5-Bromo-3,4-dichloropyridin-2-amine (CAS 1607837-98-8)
Recommended Standards
- 5-Bromo-2,4-dichlorophenol (CAS 183803-12-5)
- 4-Bromo-2,5-dichlorophenol (CAS 1940-42-7)
- 5-Bromo-3,4-dichlorophenol (CAS 1805523-00-5)
- 4-Bromo-2,3-dichlorophenol (CAS 1940-44-9)
- 1-[2-(Methylsulfonyl)-4-nitrophenyl]pyrrolidine-2-carboxylic acid (CAS 1452572-57-4)
- Baxdrostat (CAS 1428652-17-8)
- 3-(3-(4-Methoxyphenyl)-1,2,4-oxadiazol-5-yl)propan-1-amine hydrochloride (CAS 1374408-25-9)
- 4-Bromo-1-propyl-1H-pyrazole (CAS 141302-33-2)
- 1-(2-Bromo-4-chloropyridin-3-yl)ethan-1-one (CAS 1956319-11-1)
- N-(2-((4-chlorophenyl)thio)ethyl)-6,7-dimethoxyquinazolin-4-amine (CAS 477859-98-6)
- 4-Amino-6-morpholinopyrimidine (CAS 96225-80-8)
- N-(9,9-dimethyl-9H-fluoren-2-yl)phenanthren-9-amine (CAS 1372778-26-1)
- N-(4-Bromophenyl)-1-[2,4-dichloro-5-(2-methoxyethoxy)phenyl]-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 400088-25-7)
- Cholecystokinin Octapeptide (desulfated) (H-2070.0005) (CAS 198483-36-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com