4,4'-(3,3-Bis((4-bromophenyl)ethynyl)penta-1,4-diyne-1,5-diyl)bis(bromobenzene) CAS 1255098-96-4
| CAS No. | 1255098-96-4 |
| Molecular Formula | C33H16Br4 |
| Molecular Weight | 732.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,4'-(3,3-Bis((4-bromophenyl)ethynyl)penta-1,4-diyne-1,5-diyl)bis(bromobenzene) 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.
4,4'-(3,3-Bis((4-bromophenyl)ethynyl)penta-1,4-diyne-1,5-diyl)bis(bromobenzene) (CAS 1255098-96-4) is a high-purity analytical reference standard with the molecular formula C33H16Br4 and a molecular weight of 732.10 g/mol.
The molecular framework of 4,4'-(3,3-Bis((4-bromophenyl)ethynyl)penta-1,4-diyne-1,5-diyl)bis(bromobenzene) (C33H16Br4) is characterized by bromine substitution, a polycyclic aromatic system. 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 | C33H16Br4 |
| Molecular Weight | 732.10 g/mol |
| 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) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
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