Chloromethyl(dimethyl)methoxysilane CAS 18143-33-4
| CAS No. | 18143-33-4 |
| Molecular Formula | C4H11ClOSi |
| Molecular Weight | 138.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 138.67 g/mol gives Chloromethyl(dimethyl)methoxysilane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Chloromethyl(dimethyl)methoxysilane (CAS 18143-33-4), a certified reference material (molecular formula C4H11ClOSi, MW 138.67 g/mol) for analytical method development and quality control.
Based on its molecular formula C4H11ClOSi, Chloromethyl(dimethyl)methoxysilane contains a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 138.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C4H11ClOSi |
| Molecular Weight | 138.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
Related Chloromethyl Standards
- 1-[(Chloromethyl)sulfanyl]butane (CAS 42330-14-3)
- 2-[(Chloromethyl)sulfanyl]-2-methylpropane (CAS 83516-16-9)
- 3-(chloromethyl)-3-(fluoromethyl)oxetane (CAS 74465-76-2)
- Chloromethyl 2-methoxyacetate (CAS 156384-38-2)
- Chloromethyl Ethyl Carbonate (CAS 35179-98-7)
- 1,1-Bis(chloromethyl)cyclopropane (CAS 6202-96-6)
- 2-(chloromethyl)thiazole (CAS 3364-78-1)
- 4-(chloromethyl)thiazole (CAS 3364-76-9)
Recommended Standards
- 5-nitro-2-phenoxybenzoic acid (CAS 54255-63-9)
- (Chloromethoxy)trimethylsilane (CAS 23586-77-8)
- La Standard Solution (CAS 7439-91-0)
- 2-[(2-Chloroethyl)thio]propane (CAS 4303-41-7)
- 2-Methyl-7-nitro-6H-dibenzo[b,f][1,4]oxazocin-11(12H)-one (CAS 866020-36-2)
- 1-(2-Bromophenyl)-5-(trifluoromethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1312135-90-2)
- 4-Chloro-7,8-difluoro-2-methylquinoline (CAS 288151-46-2)
- Flunarizine Impurity 8 (CAS 365-24-2)
- N-(2-(dimethylamino)-2-oxoethyl)-N-methyl-4-(methylamino)butanamide (CAS 1605128-18-4)
- 3-Nitro-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 1392812-18-8)
- Methyl 5-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (CAS 2223049-04-3)
- 2,2’-Bis(N-Methyl Naltrexone) Dibromide (CAS 1178907-31-7)
- 1-(3-{5,7-dimethylpyrazolo[1,5-a]pyrimidin-2-yl}thiophen-2-yl)-2,5-dimethyl-1H-pyrrole (CAS 439111-41-8)
- Peptide Impurity 24 (CAS CATO-CPTD788824)
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