3-bromo-5-methoxy-benzofuran-2-carboxylic acid CAS 333385-05-0
| CAS No. | 333385-05-0 |
| Molecular Formula | C10H15BrO4 |
| Molecular Weight | 279.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-bromo-5-methoxy-benzofuran-2-carboxylic acid (CAS 333385-05-0), molecular formula C10H15BrO4 and molecular weight 279.13 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 3-bromo-5-methoxy-benzofuran-2-carboxylic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 279.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3-bromo-5-methoxy-benzofuran-2-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H15BrO4 |
| Molecular Weight | 279.13 g/mol |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
Related bromo Standards
- Ethyl 3-bromo-2-naphthoate (CAS 1013915-73-5)
- n-(4-Bromo-3-methylphenyl)-1h-pyrrole-2-carboxamide (CAS 1094224-17-5)
- (3-Bromo-4,5-dihydro-isoxazol-5-ylmethyl)-carbamic acid tert-butyl ester (CAS 109770-82-3)
- 4-Bromo-2-(3,5-dimethyl-1h-pyrazol-1-yl)benzaldehyde (CAS 1152645-10-7)
- 2-{[(4-bromo-2-fluorophenyl)methyl]sulfanyl}acetic acid (CAS 1155604-85-5)
- 5-Bromo-N-(4-methoxyphenyl)-2-pyridinamine (CAS 1220020-51-8)
- 2-(4-Bromo-3,5-dimethyl-1h-pyrazol-1-yl)benzaldehyde (CAS 1249321-90-1)
- 4-Bromo-2-(2-ethyl-1h-imidazol-1-yl)benzaldehyde (CAS 1250586-40-3)
Recommended Standards
- 3-(Benzyloxy)-4-bromophenol (CAS 70120-18-2)
- 4-(3-Bromopyrazolo[1,5-a]pyridin-4-yl)-2-methylbut-3-yn-2-ol (CAS 2238831-46-2)
- 3-((4-Bromobenzyl)oxy)pyridin-2-amine (CAS 866135-55-9)
- 4-(4-Bromophenoxy)benzene-1,2-diamine (CAS 43156-11-2)
- 2-Amino-N-[(2E)-1-methylpyrrolidin-2-ylidene]benzenesulfonamide (CAS 2034161-84-5)
- Ethyl 2-(4,5,6,7-tetrahydrobenzo[b]thiophen-4-yl)acetate (CAS 135399-24-5)
- 2-(3-(1H-Benzo[d]imidazol-2-yl)phenyl)-4-phenylthiazole (CAS 1414661-49-6)
- 2-Nitrodibenzofuran (CAS 20927-95-1)
- N-(2-Bromo-4-methylphenyl)-4-chlorobenzamide (CAS 299954-67-9)
- (2R,3R)-2,3-Dimethylmorpholine (CAS 1542269-03-3)
- 2,6-Difluoro-N-(2-nitrophenyl)aniline (CAS 1033225-43-2)
- 2,3-Difluoro-5-methylanisole (CAS 1806331-94-1)
- 1-(4-Fluoro-3-(isopentyloxy)phenyl)ethan-1-ol (CAS 1443325-24-3)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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