Tetrakis(3,5-dibromophenyl)silane CAS 18733-95-4
| CAS No. | 18733-95-4 |
| Molecular Formula | C24H12Br8Si |
| Molecular Weight | 967.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tetrakis(3,5-dibromophenyl)silane (CAS 18733-95-4) is a high-purity analytical reference standard with the molecular formula C24H12Br8Si and a molecular weight of 967.67 g/mol.
Owing to bromine substitution, a polycyclic aromatic system, Tetrakis(3,5-dibromophenyl)silane is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 967.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Tetrakis(3,5-dibromophenyl)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 | C24H12Br8Si |
| Molecular Weight | 967.67 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
Related Tetrakis Standards
- 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(4'-bromo-[1,1'-biphenyl]-4-yl)silane (CAS 737761-33-0)
- 5,10,15,20-Tetrakis(5-bromothiophen-2-yl)porphyrin (CAS 852982-57-1)
- 5,10,15,20-Tetrakis(4-(1,3,2-dioxaborinan-2-yl)phenyl)porphyrin (CAS 1270214-59-9)
- 2,2',7,7'-Tetrakis(diphenylamino)-9,9'-spirobi[9H-fluorene] (CAS 189363-47-1)
- (SP-4-1)-[5,10,15,20-Tetrakis(4-bromophenyl)-21H,23H-porphinato(2-)-κN21,κN22,κN23,κN24]cobalt (CAS 178476-63-6)
- 4,4,9,9-Tetrakis(5-hexyl-2-thienyl)-4,9-dihydro-s-indaceno[1,2-b:5,6-b′]dithiophene-2,7-carboxaldehyde (CAS 2115863-10-8)
- 1,3,5,7-Tetrakis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)adamantane (CAS 1636119-48-6)
Recommended Standards
- Trioctadecyl benzene-1,2,4-tricarboxylate (CAS 29220-93-7)
- CAS 2260670-32-2 (CAS 2260670-32-2)
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- 3-chloro-8-iodo-naphthalene-1-carboxylic acid (CAS 2387598-08-3)
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- Osimertinib Impurity 114 (CAS CATO-C4X-2045114)
- 4-Mercapto-2,6-dimethylphenol (CAS 43132-86-1)
- 2-(4-(Difluoromethyl)-3-fluoro-5-methoxypyridin-2-yl)acetic acid (CAS 1805624-74-1)
- Semaglutide impurity 258 (CAS CATO-C4X-2226258)
Why CATO?
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