1,4-Dibromobutan-2-yl 2-cyclopentyl-2-hydroxy-2-phenylacetate CAS 2757500-53-9
| CAS No. | 2757500-53-9 |
| Molecular Formula | C17H22Br2O3 |
| Molecular Weight | 434.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,4-Dibromobutan-2-yl 2-cyclopentyl-2-hydroxy-2-phenylacetate 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.
1,4-Dibromobutan-2-yl 2-cyclopentyl-2-hydroxy-2-phenylacetate (CAS 2757500-53-9), molecular formula C17H22Br2O3 and molecular weight 434.16 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,4-Dibromobutan-2-yl 2-cyclopentyl-2-hydroxy-2-phenylacetate (C17H22Br2O3) is characterized by a steroid core, a hydroxyl group, an ether linkage, 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 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.
Physical & Chemical Properties
| Molecular Formula | C17H22Br2O3 |
| Molecular Weight | 434.16 g/mol |
| Appearance | Off-white to pale 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 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Br-containing |
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