1,1-Dimethyl-2,3,4,5-tetraphenyl-1H-silole CAS 7641-40-9
| CAS No. | 7641-40-9 |
| Molecular Formula | C30H26Si |
| Molecular Weight | 414.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,1-Dimethyl-2,3,4,5-tetraphenyl-1H-silole (C30H26Si) 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.
1,1-Dimethyl-2,3,4,5-tetraphenyl-1H-silole (CAS 7641-40-9) is a high-purity analytical reference standard with the molecular formula C30H26Si and a molecular weight of 414.61 g/mol.
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.
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 | C30H26Si |
| Molecular Weight | 414.61 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
Related Dimethyl Standards
- 4-(((4,4-Dimethyl-2,6-dioxocyclohexylidene)methyl)amino)-N-(4-methylpyrimidin-2-yl)benzenesulfonamide (CAS 371947-39-6)
- 3,3-Dimethyl-1-(3-(1-(4-(trifluoromethyl)phenyl)-1H-1,2,3-triazole-4-carbonyl)phenyl)azetidin-2-one (CAS 865659-07-0)
- (10-(9,9-Dimethyl-9H-fluoren-2-yl)anthracen-9-yl)boronic acid (CAS 400607-35-4)
- 1,3,5-Tris(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)benzene (CAS 916330-18-2)
- 2,2-dimethyl-N-[4-(2-phenylethynyl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]propanamide (CAS 2390149-56-9)
- 4-(4-(5,5-Dimethyl-4,5-dihydrothiazol-2-yl)piperazin-1-yl)-6-(2,2,2-trifluoroethyl)thieno[2,3-d]pyrimidine (CAS 1454920-20-7)
- 2-[3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophen-2-yl]-6-(4-methoxyphenyl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 865657-95-0)
- 4,6-Dimethyl-2,3-bis(4-methylbenzenesulfonyl)pyridine (CAS 478245-49-7)
Recommended Standards
- 83058-69-9 Tfc 612 Hexanoic acid, 6-((3-hydroxy-2-(3-hydroxy-5-methyl-1-nonenyl)-5-oxocyclopentyl)thio)-, methyl ester, (1R-(1alpha,2beta(1E,3S*,5R*),3alpha))- Methyl 6-((-3-hydroxy-2-(3-hydroxy-5-methyl-1-nonenyl)-5-oxocyclopentyl)thio)hexanoate Tei 6122 Tfc-612 (CAS 83058-69-9)
- 2-(Hydroxymethyl)-2-((octanoyloxy)methyl)butyl decanoate (CAS 11138-60-6)
- 2-(2-(2-(2-(4-(Octyloxy)phenoxy)ethoxy)ethoxy)ethoxy)ethanethiol (CAS 649739-44-6)
- Calcipotriol - Impurity E (CAS 112849-14-6)
- 3-(3-(Morpholinosulfonyl)phenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde (CAS 956437-04-0)
- 4-(4-Pyridyl)aniline (CAS 13296-04-3)
- Methyl 7-[(3-methylphenyl)methyl]-5,8-dioxo-hexahydro-1H-[1,3]thiazolo[3,4-a]pyrazine-3-carboxylate (CAS 1007922-31-7)
- 4-(1H-Imidazol-4-yl)-1-methyl-1H-pyrazole hydrochloride (CAS 1260538-76-8)
- (S)-2-((1-Benzylpiperidin-3-yl)(ethyl)amino)acetic acid (CAS 1354018-21-5)
- 1-{6-methylimidazo[1,2-a]pyridin-2-yl}ethan-1-one (CAS 1538994-41-0)
- 6-Chloro-4-(phenylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid (CAS 874794-87-3)
- 8-Bromo-7-methoxy-3,4-dihydronaphthalen-1(2H)-one (CAS 61362-78-5)
- (4-(Tert-butyl)phenyl)(4-isopropylphenyl)methanone (CAS 951887-09-5)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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