4-Bromo-5-hydroxy-2-methoxybenzoic acid CAS 160911-19-3
| CAS No. | 160911-19-3 |
| Molecular Formula | C8H7BrO4 |
| Molecular Weight | 247.04 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 4-Bromo-5-hydroxy-2-methoxybenzoic acid.
4-Bromo-5-hydroxy-2-methoxybenzoic acid (CAS 160911-19-3), molecular formula C8H7BrO4 and molecular weight 247.04 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Bromo-5-hydroxy-2-methoxybenzoic acid (C8H7BrO4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, 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).
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.
CATO manufactures 4-Bromo-5-hydroxy-2-methoxybenzoic acid 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 | C8H7BrO4 |
| Molecular Weight | 247.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 5-Bromo-2,3-dihydroxybenzoic Acid Methyl Ester (CAS 105603-49-4)
- 5-Bromo-3-hydroxy-2-methoxybenzoic acid (CAS 107189-07-1)
- 7-Bromo-2-(difluoromethyl)imidazo[1,2-a]pyridine (CAS 1202179-45-0)
- 2-Bromo-5-hydroxy-4-methoxybenzoic Acid (CAS 121936-68-3)
- 5-Bromo-2-(difluoromethyl)-1h-1,3-benzodiazole (CAS 1256956-70-3)
- Ethyl 3-bromo-2-oxo-2H-pyran-5-carboxylate (CAS 126703-75-1)
- 3-Bromo-2-hydroxy-5-methoxybenzoic acid (CAS 132020-40-7)
- 2-Bromo-5-(2,2,2-trifluoroethyl)-1,3,4-thiadiazole (CAS 1339415-01-8)
Recommended Standards
- 4-Bromo-5-(trifluoromethyl)thiazol-2-amine (CAS 1453170-58-5)
- 3-Bromo-7-(difluoromethyl)imidazo[1,2-a]pyridine (CAS 1781507-64-9)
- Methyl (Z)-(3-bromo-4-methyl-5-oxofuran-2(5H)-ylidene)ethanoate (CAS 1451878-28-6)
- 4-Bromo-2-hydroxy-3-methoxybenzoic acid (CAS 1781888-81-0)
- tert-Butyl 3-((4-chloro-5-methylpyrimidin-2-yl)(methyl)amino)piperidine-1-carboxylate (CAS 1261231-32-6)
- Tert-butyl (2-(fluoromethyl)cyclopentyl)carbamate (CAS 1421601-16-2)
- 7-Chloro-1-fluoro-2,3-dihydro-1H-indene (CAS 1783656-64-3)
- 4-(Methylamino)benzenethiol (CAS 4946-21-8)
- 1,1,2,2-Tetrafluoro-3-iodopropane (CAS 679-87-8)
- n-[(3-bromophenyl)methyl]cyclopropanamine hydrochloride (CAS 1050214-15-7)
- 3-Phenyl-4,5-dihydro-1H-pyrazole (CAS 936-48-1)
- 3-Chloro-6-fluoro-2-methoxybenzaldehyde (CAS 1646821-91-1)
- 1-Methylindoline-4-carbonitrile (CAS 1502665-46-4)
- Vialox Peptide(Pentapeptide-3) diacetate (CAS 725232-44-0)
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