2,5-Bis(4-bromophenyl)-1,1-dimethyl-3,4-diphenyl-1H-silole CAS 866769-99-5
| CAS No. | 866769-99-5 |
| Molecular Formula | C30H24Br2Si |
| Molecular Weight | 572.41 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.
CATO supplies 2,5-Bis(4-bromophenyl)-1,1-dimethyl-3,4-diphenyl-1H-silole (CAS 866769-99-5), a certified reference material (molecular formula C30H24Br2Si, MW 572.41 g/mol) for analytical method development and quality control.
Owing to bromine substitution, a polycyclic aromatic system, 2,5-Bis(4-bromophenyl)-1,1-dimethyl-3,4-diphenyl-1H-silole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 572.41 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C30H24Br2Si |
| Molecular Weight | 572.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1987 |
| Halogen Content | Br-containing |
Related Bis Standards
- Ethyl 4-(2-((6-(4-bromophenyl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl)thio)acetamido)piperidine-1-carboxylate (CAS 625377-92-6)
- 2-((6-(4-Bromophenyl)-3-cyano-4-phenylpyridin-2-yl)thio)-N-(4-methyl-3-nitrophenyl)propanamide (CAS 332101-35-6)
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Recommended Standards
- 2-[3-(Benzenesulfonyl)-4-[(2-chloro-6-fluorophenyl)methoxy]phenoxy]-3-chloro-5-(trifluoromethyl)pyridine (CAS 306979-59-9)
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- 923032-38-6 BAY 869766 R enantiomer;RDEA119 R enantiomer;RDEA-119 R enantiomer;BAY 86-9766 R enantiomer (CAS 923032-38-6)
- 1,2,2,6,6-Pentamethylpiperidin-4-one (CAS 5554-54-1)
- 4-Amino-6-(3,4-dimethoxyphenyl)-1,6-dihydro-1,3,5-triazine-2-thiol (CAS 1142207-65-5)
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- 2-(4-Chlorophenyl)-N,N-dimethyl-1-oxo-1,2-dihydroisoquinoline-4-carboxamide (CAS 477850-74-1)
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