6-Bromo-5-methoxy-2-methylbenzofuran-3-carboxylic acid CAS 299198-69-9
| CAS No. | 299198-69-9 |
| Molecular Formula | C11H9BrO4 |
| Molecular Weight | 285.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Bromo-5-methoxy-2-methylbenzofuran-3-carboxylic acid (C11H9BrO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
6-Bromo-5-methoxy-2-methylbenzofuran-3-carboxylic acid (CAS 299198-69-9) is a high-purity analytical reference standard with the molecular formula C11H9BrO4 and a molecular weight of 285.09 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C11H9BrO4 |
| Molecular Weight | 285.09 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 3-(8-bromo-2,3-dihydro-1,4-benzodioxin-6-yl)prop-2-enoic acid (CAS 1094225-83-8)
- 4-Bromo-N-cyclopropyl-3-nitrobenzamide (CAS 1096842-91-9)
- 1-(5-Bromo-4-nitroindolin-1-yl)ethan-1-one (CAS 1116339-78-6)
- 5-Bromo-6-methoxy-1H-indazole-3-carboxylic acid methyl ester (CAS 1134328-15-6)
- 5-[(4-bromo-1H-pyrazol-1-yl)methyl]-2-methylfuran-3-carboxylic acid (CAS 1179844-18-8)
- 5-[(4-bromo-1h-pyrazol-1-yl)methyl]-3-methylfuran-2-carboxylic acid (CAS 1183176-76-2)
- Ethyl 5-bromo-7-hydroxybenzofuran-2-carboxylate (CAS 1188265-94-2)
- 5-Bromo-6-(2,4-difluorophenyl)-pyridin-2-ylamine (CAS 1189817-66-0)
Recommended Standards
- 5-Bromo-N-(2,6-difluorophenyl)pyridin-2-amine (CAS 475634-96-9)
- 6-Bromo-8-methoxy-2H-chromene-3-carboxylic acid (CAS 885271-13-6)
- 5-Bromo-4-methoxy-3-methylbenzofuran-2-carboxylic acid (CAS 857081-09-5)
- 7-Bromo-3-methyl-1-oxo-3,4-dihydro-1h-2-benzopyran-3-carboxylic acid (CAS 951901-84-1)
- (S)-2-amino-3-(3,5-dihydroxyphenyl)propanoic acid (CAS 194160-48-0)
- 2-Chloro-N,N-dimethyl-4-nitroaniline (CAS 6213-19-0)
- N-Methyl-N-(prop-2-yn-1-yl)-2,3-dihydro-1H-inden-1-amine hydrochloride (CAS 1506-17-8)
- 2-Bromo-3-methyl-5-(methylthio)pyridine (CAS 2624417-50-9)
- 8-Methoxy-2-(trifluoromethyl)-1,2-dihydro-4H-thieno[2,3-c]chromen-4-one 3,3-dioxide (CAS 756836-88-1)
- N-(4-fluorophenyl)-2-(4-formyl-2-iodo-6-methoxyphenoxy)acetamide (CAS 552854-23-6)
- (E)-2-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-N-((dimethylamino)methylene)-2-methylhydrazine-1-carboxamide (CAS 321433-38-9)
- Seneciphylline (CAS 480-81-9)
- 1-(4-Methoxyphenyl)-2-(trifluoromethyl)pyrrolidine (CAS 931383-15-2)
- (9-D-Asp) Semaglutide X Sodium salt (CAS CATO-CPTD788617)
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