(5-Bromo-7-fluoro-2-methyl-1h-indol-3-yl)acetic acid CAS 383131-71-3
| CAS No. | 383131-71-3 |
| Molecular Formula | C11H9BrFNO2 |
| Molecular Weight | 286.10 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.
(5-Bromo-7-fluoro-2-methyl-1h-indol-3-yl)acetic acid (CAS 383131-71-3), molecular formula C11H9BrFNO2 and molecular weight 286.10 g/mol, is a CATO reference standard with documented purity and traceability.
(5-Bromo-7-fluoro-2-methyl-1h-indol-3-yl)acetic acid (C11H9BrFNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. 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 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).
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 | C11H9BrFNO2 |
| Molecular Weight | 286.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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 | F/Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- (5-bromo-7-fluoro-2-methyl-1H-indol-3-yl) acetate (CAS 2594072-72-5)
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- (5-bromo-6-fluoro-2-methyl-1H-indol-3-yl) acetate (CAS 2535944-72-8)
- 2-(1-Aminoethyl)-3-bromo-7-fluoro-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 918422-25-0)
- 5-[(3-tert-Butylphenyl)methyl]-2-[(4-tert-butylphenyl)methyl]-2H-1,2,3,4-tetrazole (CAS 866151-74-8)
- 1-Methylphthalazine (CAS 5004-46-6)
- 6-aldehydo-isoophiopogonone A (CAS 112500-90-0)
- tert-butyl (4R)-4-tert-butyl-2,2-dioxo-oxathiazolidine-3-carboxylate (CAS 1313705-92-8)
- 3,5-Dibromo-6-chloropyrazin-2-amine (CAS 566205-01-4)
- n-((3-Aminocyclobutyl)methyl)-2,3-dimethylbutanamide (CAS 1487772-64-4)
- 2,6-Dibromo-3-fluorophenylacetonitrile (CAS 1806328-70-0)
- 3-(Benzylsulfonyl)-1,2,4-thiadiazol-5-amine (CAS 99358-76-6)
- Tert-butyl (S)-2-(3-aminopropyl)morpholine-4-carboxylate (CAS 2137423-89-1)
- Semaglutide Impurity 180 (CAS CATO-C4X-2226180)
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