4-Bromo-2,5-dimethoxybenzoic acid CAS 35458-39-0
| CAS No. | 35458-39-0 |
| Molecular Formula | C9H9BrO4 |
| Molecular Weight | 261.07 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-2,5-dimethoxybenzoic acid (CAS 35458-39-0), molecular formula C9H9BrO4 and molecular weight 261.07 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Bromo-2,5-dimethoxybenzoic acid (C9H9BrO4) 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 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).
CATO manufactures 4-Bromo-2,5-dimethoxybenzoic 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 | C9H9BrO4 |
| Molecular Weight | 261.07 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.) | 1967 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 3-bromo-2,5-dimethoxybenzoic acid (CAS 100940-12-3)
- Methyl 3-bromo-4-hydroxy-5-methoxybenzoate, 97% (CAS 108249-43-0)
- 3-Bromo-5H-cyclopenta[1,2-b:5,4-b']dipyridin-5-one (CAS 1182844-62-7)
- 5-Bromo-2-ethoxy-4-methyl-3-nitropyridine (CAS 1215206-58-8)
- 2-(3-Bromo-4-methoxyphenyl)-2-hydroxyacetic acid (CAS 1226125-24-1)
- 4-Bromo-5-ethoxy-2-nitroaniline (CAS 1242336-59-9)
- 5-Bromo-2-isopropoxy-3-nitropyridine (CAS 1248216-10-5)
- 2-(2-Bromo-4-nitrophenoxy)ethan-1-amine (CAS 1249615-17-5)
Recommended Standards
- 3-Bromo-4,5-dimethoxybenzoic acid (CAS 20731-48-0)
- 4-Bromo-2,6-dimethoxybenzoic acid (CAS 61203-54-1)
- 3-Bromo-2-oxo-1(2H)-pyrazineacetic Acid Ethyl Ester (CAS 267876-34-6)
- 4-Bromo-5-methoxy-N-methyl-2-nitroaniline (CAS 2243949-98-4)
- 1-ethyl-1H-1,2,4-triazol-5-amine (CAS 58661-94-2)
- 9-(Iodomethyl)acridine (CAS 219647-49-1)
- Tert-butyl 3-(2-aminoanilino)azetidine-1-carboxylate (CAS 1513681-34-9)
- 1-Fluoro-5-methoxy-2,4-dinitrobenzene (CAS 394-18-3)
- 2-(4-Oxo-1,4-dihydroquinolin-1-yl)acetamide (CAS 1170060-49-7)
- 1,2,4,5-Tetramethylimidazole (CAS 1739-83-9)
- Mebeverine EP Impurity G (CAS CATO-C4X-16879)
- 1-(1-Isopropyl-5-methyl-1H-pyrazol-4-yl)-N-((1-methyl-1H-pyrazol-3-yl)methyl)methanamine hydrochloride (CAS 1856083-35-6)
- 1-Palmitoyl-2-linoleoyl-sn-glycero-3-phospho-L-serine Sodium Salt (CAS 384833-20-9)
- Liraglutide Impurity 16 TFA Salt (CAS CATO-C4X-199216)
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