Diethoxy(methyl)(octadecyl)silane CAS 67859-75-0
| CAS No. | 67859-75-0 |
| Molecular Formula | C23H50O2Si |
| Molecular Weight | 386.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Diethoxy(methyl)(octadecyl)silane is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Diethoxy(methyl)(octadecyl)silane (CAS 67859-75-0), a certified reference material (molecular formula C23H50O2Si, MW 386.73 g/mol) for analytical method development and quality control.
The molecular framework of Diethoxy(methyl)(octadecyl)silane (C23H50O2Si) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C23H50O2Si |
| Molecular Weight | 386.73 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1976 |
Related Diethoxy Standards
- 4-((5,5-Diethoxy-5-phenylpentyl)oxy)-3-methoxyaniline (CAS 15382-91-9)
- 4-(4,5-Diethoxy-2-nitrobenzylidene)-2-phenyloxazol-5(4H)-one (CAS 910-71-4)
- (6,7-Diethoxy-3-methyl-5-nitrobenzofuran-2-yl)(morpholino)methanone (CAS 40713-22-2)
- 3-(4,5-Diethoxy-2-nitrobenzylidene)dihydrofuran-2(3H)-one (CAS 92647-58-0)
- 2,4-Diethoxy-5-fluoropyrimidine (CAS 155-36-2)
- 1-((2,5-Diethoxy-4-methylphenyl)sulfonyl)-4-methyl-2-phenyl-1H-imidazole (CAS 898654-86-9)
- 5068-23-5 6,7-diethoxy-1-(4-methoxy-3-propan-2-ylphenyl)-1,2,3,4-tetrahydroisoquinoline DTXSID80409658 (CAS 5068-23-5)
- 3,4-Diethoxy-N-(5-phenyl-1,3,4-thiadiazol-2-yl)benzamide (CAS 476463-10-2)
Recommended Standards
- 4-chloro-3,5-bis[4-(difluoromethoxy)phenyl]-1h-pyrazole (CAS 1239479-63-0)
- 3-Chloro-5-(trifluoromethyl)-2-(1-{[3-(trifluoromethyl)pyridin-2-yl]sulfanyl}ethyl)pyridine (CAS 1092345-94-2)
- 4-Chloro-3,5-bis(3-(difluoromethoxy)phenyl)-1h-pyrazole (CAS 1232837-26-1)
- 4-Nitrobenzyl (3-chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)carbamate (CAS 439093-98-8)
- 2,5-Dichloro-6-(hydroxymethyl)-4-iodopyridin-3-ol (CAS 1261365-52-9)
- 1260678-84-9 2-(Trifluoromethyl)cyclopentanamine 2-(trifluoromethyl)cyclopentan-1-amine (CAS 1260678-84-9)
- Alpidem-d14 (CAS 1189962-23-9)
- 3-(3-Ethylpyrrolidin-2-yl)-N,N-dimethylaniline (CAS 524918-49-8)
- 5-Chloro-8-methylchroman-4-one (CAS 1092349-11-5)
- 2-(Trifluoromethyl)thiazole-5-carboxylic Acid (CAS 1286734-84-6)
- Nornorcapsaicin (CAS 61229-09-2)
- Benzoic acid, 2-(difluoromethoxy)-4-iodo-, methyl ester (CAS 1193467-19-4)
- 3-Methyl-1-((2-methylthiazol-5-yl)methyl)piperidin-4-amine (CAS 1249691-31-3)
- Semaglutide impurity 274 (CAS CATO-C4X-2226274)
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