Methoxy(methyl)diphenylsilane CAS 18407-48-2
| CAS No. | 18407-48-2 |
| Molecular Formula | C14H16OSi |
| Molecular Weight | 228.36 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.
Methoxy(methyl)diphenylsilane (CAS 18407-48-2), molecular formula C14H16OSi and molecular weight 228.36 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methoxy(methyl)diphenylsilane (C14H16OSi) contains a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 228.36 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C14H16OSi |
| Molecular Weight | 228.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Methoxy Standards
- 1-(4-Methoxy-phenyl)-1,2,3,4-tetrahydro-pyrrolo[1,2-a]pyrazine (CAS 112758-90-4)
- N-Methoxy-N,3-dimethyl-3H-imidazo[4,5-b]pyridine-6-carboxamide (CAS 1186310-78-0)
- 4-(4-Methoxy-3-methylphenyl)-2-methylphenol (CAS 1255636-23-7)
- 2-(2'-Methoxy-[1,1'-biphenyl]-3-yl)ethan-1-ol (CAS 1443349-57-2)
- 2-Methoxy-3-methylpyridine (CAS 19230-59-2)
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Recommended Standards
- (1,4-Dioxaspiro[4.5]dec-7-en-8-yloxy)-trimethylsilane (CAS 144810-01-5)
- (R)-2-(((tert-Butyldimethylsilyl)oxy)methyl)furan-3(2H)-one (CAS 189166-06-1)
- (1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-imidazol-2-yl)methanol (CAS 129486-90-4)
- (1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-pyrazol-3-yl)methanol (CAS 869558-95-2)
- 3,5-Dimethyl-N-[3-(phenethyloxy)benzyl]aniline (CAS 1040687-13-5)
- (2-(Isopentyloxy)-5-methylphenyl)methanol (CAS 1343795-39-0)
- (1H-Indazol-3-yl)methanamine dihydrochloride (CAS 1195264-69-7)
- (R)-5-Ethyl-5-phenyloxazolidine-2,4-dione (CAS 120710-28-3)
- 2-Hexylthiophene (CAS 18794-77-9)
- 6-Bromo-4-methoxy-2H-indazole-3-carbaldehyde (CAS 887568-73-2)
- 2-Benzyl-5-methyl-1H-1,2,4-triazole-3(2H)-thione (CAS 103274-34-6)
- Reserpine (CAS CATO-LINS000999)
- 4-[(tert-Butylamino)sulfonyl]benzoic Acid (CAS 99987-05-0)
- [pGlu] Semaglutide (CAS CATO-C4X-2226288)
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