Di([1,1'-biphenyl]-4-yl)diphenylsilane CAS 3172-33-6
| CAS No. | 3172-33-6 |
| Molecular Formula | C36H28Si |
| Molecular Weight | 488.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Di([1,1'-biphenyl]-4-yl)diphenylsilane is closely related to a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Di([1,1'-biphenyl]-4-yl)diphenylsilane (CAS 3172-33-6), molecular formula C36H28Si and molecular weight 488.69 g/mol, is a CATO reference standard with documented purity and traceability.
Di([1,1'-biphenyl]-4-yl)diphenylsilane (C36H28Si) contains a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), Di([1,1'-biphenyl]-4-yl)diphenylsilane 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 | C36H28Si |
| Molecular Weight | 488.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Di Standards
- N-([1,1'-Biphenyl]-4-yl)-3'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-amine (CAS 1946806-94-5)
- 2,2'-([1,1'-Biphenyl]-4,4'-diyl)bis(1,1,1,3,3,3-hexafluoropropan-2-ol) (CAS 2180-30-5)
- N-([1,1'-biphenyl]-2-yl)-9,9-diphenyl-9H-fluoren-2-amine (CAS 1853250-53-9)
- N-([1,1'-Biphenyl]-4-yl)-9,9-diphenyl-9H-fluoren-2-amine (CAS 1268520-04-2)
- 9-([1,1'-Biphenyl]-4-yl)-10-bromo-2-phenylanthracene (CAS 1195975-03-1)
- 2-([1,1'-Biphenyl]-4-yloxy)-1,4-diamino-3-bromoanthracene-9,10-dione (CAS 89868-51-9)
- 1-([1,1'-Biphenyl]-4-ylmethyl)-4,6-difluoro-5-iodo-2-(methylthio)-1h-benzo[d]imidazole (CAS 1219741-32-8)
- 4-(4,5-Di([1,1'-biphenyl]-4-yl)-1H-imidazol-2-yl)benzoic acid (CAS 312320-13-1)
Recommended Standards
- Terfenadine EP Impurity C (CAS CATO-C4X-12192)
- Rimegepant Impurity 148 (CAS CATO-C4X-2487148)
- (E)-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](phenyl)methylidene}amino N-(2,4-dichlorophenyl)carbamate (CAS 338953-43-8)
- 143839-02-5 2,24-Dihydroxyursolic acid C30H48O5 W2597 (CAS 143839-02-5)
- 2-(4-tert-Butylphenoxy)-3-methanesulfonyl-4-methyl-6-phenylpyridine (CAS 478245-55-5)
- 7-fluoro-1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid (CAS 1260641-74-4)
- Ethyl 2,3-dimethyl-1H-indole-4-carboxylate (CAS 106269-68-5)
- Propargyl-PEG4-NHS ester (CAS 1428629-70-2)
- 9-Amino-7-benzyl-3-thia-7-azabicyclo[3.3.1]Nonane 3,3-dioxide (CAS 1823265-87-7)
- 2-Methyl-6-pyrrolidin-2-yl-pyrimidin-4-ol dihydrochloride (CAS 1229623-53-3)
- 5,8-Dimethyl-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid (CAS 36991-52-3)
- 4,6-Difluoro-1H-indole-5-carboxylic acid (CAS 1895475-56-5)
- 3-(3,4-Difluorobenzyl)piperidine (CAS 1216116-52-7)
- Semaglutide impurity 251 (CAS CATO-C4X-2226251)
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