4,4'-Bis(dimethyl(phenyl)silyl)-1,1'-biphenyl CAS 18848-27-6
| CAS No. | 18848-27-6 |
| Molecular Formula | C28H30Si2 |
| Molecular Weight | 422.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4,4'-Bis(dimethyl(phenyl)silyl)-1,1'-biphenyl.
4,4'-Bis(dimethyl(phenyl)silyl)-1,1'-biphenyl (CAS 18848-27-6), molecular formula C28H30Si2 and molecular weight 422.71 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4,4'-Bis(dimethyl(phenyl)silyl)-1,1'-biphenyl (C28H30Si2) contains a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 422.71 g/mol, it falls into the moderately-high-molecular-weight range. 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.
CATO manufactures 4,4'-Bis(dimethyl(phenyl)silyl)-1,1'-biphenyl under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C28H30Si2 |
| Molecular Weight | 422.71 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Bis Standards
- 2',3"-Dimethyl-[1,1':4',1":4",1"'-quaterphenyl]-4,4"'-dicarboxylic acid (CAS 1799740-98-9)
- (3,5-Dimethyl-4-((phenylsulfonyl)methyl)-1H-pyrazol-1-yl)(3-(trifluoromethyl)phenyl)methanone (CAS 324009-24-7)
- 1,3-Dimethyl 2-{4-[methyl(phenyl)sulfamoyl]-2-nitrophenyl}propanedioate (CAS 860785-56-4)
- Dimethyl 5-(((7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methyl)sulfonamido)isophthalate (CAS 453582-55-3)
- N-(5,6-dimethyl-1-(2-methylbenzyl)-1H-benzo[d]imidazol-4-yl)-4-fluorobenzenesulfonamide (CAS 338954-62-4)
- N-(5,6-dimethyl-1-(3-methylbenzyl)-1H-benzo[d]imidazol-4-yl)-4-fluorobenzenesulfonamide (CAS 338423-33-9)
- N-(5,6-dimethyl-1-(4-methylbenzyl)-1H-benzo[d]imidazol-4-yl)-4-fluorobenzenesulfonamide (CAS 338422-94-9)
- 2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(naphthalen-1-yl)acetamide (CAS 335399-52-5)
Recommended Standards
- 2-(3-Bromo-5-chlorophenyl)-4,6-diphenyl-1,3,5-triazine (CAS 1073062-42-6)
- 2-(2-Bromo-5-chlorophenyl)-4,6-diphenyl-1,3,5-triazine (CAS 2137032-39-2)
- 4-Octadecyloxybiphenyl (CAS 376609-78-8)
- 2-(3-Bromo-4-chlorophenyl)-4,6-diphenyl-1,3,5-triazine (CAS 2407810-32-4)
- 1-(o-Tolylamino)cyclohexanecarboxylic acid (CAS 725234-58-2)
- 2-(Benzo[d]oxazol-2-yl)acetamide (CAS 34564-12-0)
- 2-Chloro-3-(methoxymethyl)pyrazine (CAS 1289387-97-8)
- 4-Cyano-2-(difluoromethyl)-5-iodopyridine-3-methanol (CAS 1805380-12-4)
- 3-((2-Methyl-1H-imidazol-4-yl)ethynyl)benzonitrile (CAS 808773-42-4)
- Methyl 2-(4-formylphenyl)-2-methylpropanoate (CAS 84542-11-0)
- (E)-4-[(2-Chlorobenzyl)amino]-4-oxo-2-butenoic acid (CAS 904785-36-0)
- Tert-butyl 4-hydroxy-4-(((4-methyl-5-(trifluoromethyl)-4H-1,2,4-triazol-3-yl)thio)methyl)piperidine-1-carboxylate (CAS 1440535-72-7)
- 1-(Cyclohexyloxy)-4-ethynylbenzene (CAS 587854-10-2)
- Des-Gly34-Tirzepatide (CAS CATO-CPTD788940)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com