Tetrakis(4'-bromo-[1,1'-biphenyl]-4-yl)silane CAS 737761-33-0
| CAS No. | 737761-33-0 |
| Molecular Formula | C48H32Br4Si |
| Molecular Weight | 956.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Tetrakis(4'-bromo-[1,1'-biphenyl]-4-yl)silane (CAS 737761-33-0), molecular formula C48H32Br4Si and molecular weight 956.47 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to bromine substitution, a polycyclic aromatic system, Tetrakis(4'-bromo-[1,1'-biphenyl]-4-yl)silane is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 956.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Tetrakis(4'-bromo-[1,1'-biphenyl]-4-yl)silane 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.
Physical & Chemical Properties
| Molecular Formula | C48H32Br4Si |
| Molecular Weight | 956.47 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) | 31.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Br-containing |
Related Tetrakis Standards
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- 4,4,9,9-tetrakis(4-hexylphenyl)-4,9-dihydro-s-indeno[1,2-b:5,6-b']dithiophene-2,7-di aldehyde (CAS 1884694-93-2)
- Tetrakis(3,5-dibromophenyl)silane (CAS 18733-95-4)
- 1,3,5,7-Tetrakis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)adamantane (CAS 1636119-48-6)
- 1,3,5,7-tetrakis(4-iodophenyl)adamantane (CAS 144970-30-9)
- 5,10,15,20-Tetrakis(5-bromopyridin-2-yl)porphyrin (CAS 2414050-99-8)
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