2,4-Dibromo-5-methoxybenzoic acid CAS 121789-22-8
| CAS No. | 121789-22-8 |
| Molecular Formula | C8H6Br2O3 |
| Molecular Weight | 309.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2,4-Dibromo-5-methoxybenzoic acid (CAS 121789-22-8), a certified reference material (molecular formula C8H6Br2O3, MW 309.94 g/mol) for analytical method development and quality control.
The molecular framework of 2,4-Dibromo-5-methoxybenzoic acid (C8H6Br2O3) 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 2,4-Dibromo-5-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 | C8H6Br2O3 |
| Molecular Weight | 309.94 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| 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.) | 1991 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 3,5-Dibromo-2-hydroxy-4-methoxybenzaldehyde (CAS 117238-61-6)
- 4,6-Dibromo-2-methyl-3-nitroaniline (CAS 117824-52-9)
- 2,4-Dibromo-6-methyl-3-nitroaniline (CAS 117824-53-0)
- 2,6-Dibromo-4-methyl-3-nitroaniline (CAS 117824-54-1)
- 3,5-Dibromo-2-methoxybenzoic acid (CAS 13130-23-9)
- 4,6-Dibromo-3-methyl-2-nitroaniline (CAS 1326310-78-4)
- Methyl 2,6-dibromo-4-hydroxybenzoate (CAS 176372-55-7)
- 4,5-Dibromo-2-(2-oxopropyl)-2,3-dihydropyridazin-3-one (CAS 186792-10-9)
Recommended Standards
- 2-(3,4-Dibromophenyl)-2-hydroxyacetic acid (CAS 1214378-08-1)
- Methyl 6-bromo-3-(bromomethyl)pyrazine-2-carboxylate (CAS 1260665-22-2)
- Ethyl 2,4-dibromopyrimidine-5-carboxylate (CAS 1266480-83-4)
- Ethyl 3,6-dibromopyrazine-2-carboxylate (CAS 1416439-81-0)
- 2-Cyclopropyl-4-(trifluoromethyl)aniline (CAS 1936063-39-6)
- N-tert-Butylacrylamide (CAS 107-58-4)
- Sodium4,4',4'',4'''-(ethene-1,1,2,2-tetrayl)tetrabenzenesulfonate (CAS 2116433-85-1)
- endo-4a-Ser-Cetrorelix (CAS CATO-C4X-201433)
- 1-(3,4-Dichlorobenzyl)piperidin-3-amine hydrochloride (CAS 1289387-48-9)
- 2-(2,2-dimethylcyclopropyl)acetaldehyde (CAS 78167-56-3)
- rel-(1R,5S,6r)-3,3-difluorobicyclo[3.1.0]hexane-6-carboxylic acid (CAS 1447942-39-3)
- tert-Butyl 3-((4-amino-3-methoxyphenyl)amino)azetidine-1-carboxylate (CAS 1375465-25-0)
- 4-Methoxy-1H-pyrrolo[3,2-c]pyridin-2(3H)-one (CAS 1000342-85-7)
- PACAP-Related Peptide (PRP), rat (CAS 132769-35-8)
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