Chloromethyl-(4-chlorophenoxy)dimethylsilane CAS 203785-59-5
| CAS No. | 203785-59-5 |
| Molecular Formula | C9H12Cl2OSi |
| Molecular Weight | 235.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Chloromethyl-(4-chlorophenoxy)dimethylsilane 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.
Chloromethyl-(4-chlorophenoxy)dimethylsilane (CAS 203785-59-5) is a high-purity analytical reference standard with the molecular formula C9H12Cl2OSi and a molecular weight of 235.18 g/mol.
Owing to a hydroxyl group, an ether linkage, chlorine substitution, Chloromethyl-(4-chlorophenoxy)dimethylsilane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 235.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C9H12Cl2OSi |
| Molecular Weight | 235.18 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2015 |
| Halogen Content | Cl-containing |
Related Chloromethyl Standards
- Chloromethyl-(2-chlorophenoxy)dimethylsilane (CAS 88127-54-2)
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- 1,2-bis(chloromethyl)-4,5-dimethoxybenzene (CAS 1134-52-7)
- 3-(Chloromethyl)-5-(3-chlorothiophen-2-yl)-1,2,4-oxadiazole (CAS 1509882-79-4)
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- Methyl 4-cyano-5-(trifluoromethyl)thiophene-2-carboxylate (CAS 2168855-19-2)
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- 3-ethyl-4-hydroxybenzonitrile (CAS 4997-55-1)
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- 5-Bromo-2-methylthiazole-4-carbonitrile (CAS 723743-71-3)
- 3',4'-Dihydrospiro[azetidine-3,2'-[1]benzopyran]-4'-one hydrochloride (CAS 1236862-45-5)
- 2-Cyano-3-(2,4-dimethoxyphenyl)-N-(2,5-dimethylphenyl)propanamide (CAS 1260944-20-4)
- 3′-Octyl-5′-(trimethylsilyl)[2,2′-bithiophene]-5-carboxaldehyde (CAS 2058096-35-6)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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