Br-PEG9-CH2CH2Br CAS 140714-66-5
| CAS No. | 140714-66-5 |
| Molecular Formula | C20H40Br2O9 |
| Molecular Weight | 584.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Br-PEG9-CH2CH2Br 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.
Br-PEG9-CH2CH2Br (CAS 140714-66-5), molecular formula C20H40Br2O9 and molecular weight 584.33 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Br-PEG9-CH2CH2Br (C20H40Br2O9) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C20H40Br2O9 |
| Molecular Weight | 584.33 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
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