| CAS No. | 173678-07-4 |
| Molecular Formula | C26H17Br |
| Molecular Weight | 409.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 409.32 g/mol gives 1,1'-(5-Bromo-1,3-phenylene)dinaphthalene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1,1'-(5-Bromo-1,3-phenylene)dinaphthalene (CAS 173678-07-4), a certified reference material (molecular formula C26H17Br, MW 409.32 g/mol) for analytical method development and quality control.
Structurally, 1,1'-(5-Bromo-1,3-phenylene)dinaphthalene (C26H17Br) contains bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 409.32 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), 1,1'-(5-Bromo-1,3-phenylene)dinaphthalene 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.
| Molecular Formula | C26H17Br |
| Molecular Weight | 409.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Halogen Content | Br-containing |