(1R)-6-Chloro-2,3,4,5-tetrahydro-3-methyl-1-phenyl-1H-3-benzazepine-7,8-diol hydrobromide (R)-SKF-82957 hydrobromide 1H-3-Benzazepine-7,8-diol,6-chloro-2,3,4,5-tetrahydro-3-methyl-1-phenyl hydrobromide hydrobromide 288262-87-3 CAS 288262-87-3
| CAS No. | 288262-87-3 |
| Molecular Formula | C17H18ClNO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (1R)-6-Chloro-2,3,4,5-tetrahydro-3-methyl-1-phenyl-1H-3-benzazepine-7,8-diol hydrobromide (R)-SKF-82957 hydrobromide 1H-3-Benzazepine-7,8-diol,6-chloro-2,3,4,5-tetrahydro-3-methyl-1-phenyl hydrobromide hydrobromide 288262-87-3 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.
(1R)-6-Chloro-2,3,4,5-tetrahydro-3-methyl-1-phenyl-1H-3-benzazepine-7,8-diol hydrobromide (R)-SKF-82957 hydrobromide 1H-3-Benzazepine-7,8-diol,6-chloro-2,3,4,5-tetrahydro-3-methyl-1-phenyl hydrobromide hydrobromide 288262-87-3 (CAS 288262-87-3), molecular formula C17H18ClNO2HBr and molecular weight 384.70 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (1R)-6-Chloro-2,3,4,5-tetrahydro-3-methyl-1-phenyl-1H-3-benzazepine-7,8-diol hydrobromide (R)-SKF-82957 hydrobromide 1H-3-Benzazepine-7,8-diol,6-chloro-2,3,4,5-tetrahydro-3-methyl-1-phenyl hydrobromide hydrobromide 288262-87-3 (C17H18ClNO2HBr) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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).
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.
Physical & Chemical Properties
| Molecular Formula | C17H18ClNO2 HBr |
| Molecular Weight | 384.70 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
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