8-Bromo-6-methoxy-2-oxo-2H-chromene-3-carboxylic acid CAS 477848-48-9
| CAS No. | 477848-48-9 |
| Molecular Formula | C11H7BrO5 |
| Molecular Weight | 299.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 8-Bromo-6-methoxy-2-oxo-2H-chromene-3-carboxylic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 8-Bromo-6-methoxy-2-oxo-2H-chromene-3-carboxylic acid (CAS 477848-48-9), a certified reference material (molecular formula C11H7BrO5, MW 299.07 g/mol) for analytical method development and quality control.
8-Bromo-6-methoxy-2-oxo-2H-chromene-3-carboxylic acid (C11H7BrO5) 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, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 8-Bromo-6-methoxy-2-oxo-2H-chromene-3-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 | C11H7BrO5 |
| Molecular Weight | 299.07 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 6-Bromo-8-methoxy-2-oxo-2H-chromene-3-carboxylic acid (CAS 119686-34-9)
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Recommended Standards
- Resmetirom Impurity 22 (CAS 125001-18-5)
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- 1-Bromo-3-isopropoxy-5-trifluoromethoxybenzene (CAS 1221793-61-8)
- Methyl 4-(((2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-ylidene)methyl)amino)benzoate (CAS 230631-82-0)
- 1365963-80-9 N-[4-(1,3-Benzoxazol-2-yl)phenyl]-2-chloropropanamide MFCD22056589 (CAS 1365963-80-9)
- Bis(3-(Trifluoromethyl)Phenyl)(4-(Trifluoromethyl)Phenyl)Silanol (CAS 6317-80-2)
- 2-Amino-1-((S)-2-((benzyl(methyl)amino)methyl)piperidin-1-yl)-3-methylbutan-1-one (CAS 1354026-59-7)
- Benzoic-3,5-d2 Acid (CAS 37960-84-2)
- 3,4-Dibromo-2,5-dimethylthiophene (CAS 39129-54-9)
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- 1-(1-Fluorocyclopropyl)ethanone (CAS 63141-10-6)
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