5-Bromo-4-chloro-3-indolyl β-D-cellobioside CAS 177966-52-8
| CAS No. | 177966-52-8 |
| Molecular Formula | C20H25BrClNO11 |
| Molecular Weight | 570.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromo-4-chloro-3-indolyl β-D-cellobioside (CAS 177966-52-8), molecular formula C20H25BrClNO11 and molecular weight 570.77 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Bromo-4-chloro-3-indolyl β-D-cellobioside (C20H25BrClNO11) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), 5-Bromo-4-chloro-3-indolyl β-D-cellobioside 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 | C20H25BrClNO11 |
| Molecular Weight | 570.77 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
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