5-Bromo-1-methyl-2,3-dihydroindole CAS 99848-78-9
| CAS No. | 99848-78-9 |
| Molecular Formula | C9H10BrN |
| Molecular Weight | 212.09 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-1-methyl-2,3-dihydroindole (CAS 99848-78-9), molecular formula C9H10BrN and molecular weight 212.09 g/mol, is a CATO reference standard with documented purity and traceability.
5-Bromo-1-methyl-2,3-dihydroindole (C9H10BrN) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. Halogen substitution raises its density and boiling point; 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).
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 | C9H10BrN |
| Molecular Weight | 212.09 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- (4R,5S)-4,5-Dihydroxypiperidin-2-one (CAS 1429476-51-6)
- Methyl 2-methyl-4-(3-nitrophenyl)-6-(((1-phenyl-1H-imidazol-2-yl)thio)methyl)-1,4-dihydropyridine-3-carboxylate (CAS 478040-17-4)
- ((1-(Bromomethyl)cyclohexyl)oxy)cycloheptane (CAS 1342144-96-0)
- Estriol EP Impurity K (CAS 901-93-9)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
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