| CAS No. | 6548-09-0 |
| Molecular Formula | C11H19BrN2O2 |
| Molecular Weight | 291.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), (2R)-2-ammonio-3-(5-bromo-1H-indol-3-yl)propanoate (2R)-2-azaniumyl-3-(5-bromanyl-1H-indol-3-yl)propanoate 6548-09-0 A835132 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.
(2R)-2-ammonio-3-(5-bromo-1H-indol-3-yl)propanoate (2R)-2-azaniumyl-3-(5-bromanyl-1H-indol-3-yl)propanoate 6548-09-0 A835132 (CAS 6548-09-0) is a high-purity analytical reference standard with the molecular formula C11H19BrN2O2 and a molecular weight of 291.18 g/mol.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, (2R)-2-ammonio-3-(5-bromo-1H-indol-3-yl)propanoate (2R)-2-azaniumyl-3-(5-bromanyl-1H-indol-3-yl)propanoate 6548-09-0 A835132 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 291.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
| Molecular Formula | C11H19BrN2O2 |
| Molecular Weight | 291.18 g/mol |
| Appearance | 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 DMSO, DMF, methanol |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |