Chloromethyltrimethoxysilane CAS 5926-26-1
Chloromethyltrimethoxysilane Basic information
| Product Name: | Chloromethyltrimethoxysilane |
| Synonyms: | (trimethoxychloromethyl)silane;chloromethyl-trimethoxy-silan;CHLOROMETHYLTRIMETHOXYSILANE;Silane,(chloromethyl)trimethoxy-;ND-40;(Trimethoxysilyl)chloromethane;Chloro(trimethoxysilyl)methane;Co-Formula CFS-C261 |
| CAS: | 5926-26-1 |
| MF: | C4H11ClO3Si |
| MW: | 170.67 |
| EINECS: | |
| Product Categories: | Alkoxy Silanes;Alpha Silanes;Self Assembly&Contact Printing;Self-Assembly Materials;Silanes |
| Mol File: | 5926-26-1.mol |
Chloromethyltrimethoxysilane Chemical Properties
| Boiling point | 151 °C (lit.) |
| density | 1.132 g/mL at 25 °C (lit.) |
| refractive index | 1.407 [25°C] |
| Fp | 26 °F |
| storage temp. | Storage temp. 2-8°C |
| form | clear liquid |
| color | Colorless to Almost colorless |
| Specific Gravity | 1.125 |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| InChI | InChI=1S/C4H11ClO3Si/c1-6-9(4-5,7-2)8-3/h4H2,1-3H3 |
| InChIKey | FPOSCXQHGOVVPD-UHFFFAOYSA-N |
| SMILES | [Si](CCl)(OC)(OC)OC |
| CAS DataBase Reference | 5926-26-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Silane, chloromethyl-trimethoxy-(5926-26-1) |
Safety Information
| Hazard Codes | F |
| Risk Statements | 11 |
| Safety Statements | 16-29-33 |
| RIDADR | UN 1993 3/PG 2 |
| WGK Germany | 3 |
| RTECS | VV2625000 |
| TSCA | No |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29319090 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Flam. Liq. 2 |
| Chemical Properties | Clear transparent liquid |
| Uses | Chloromethyltrimethoxysilane may be used in the preparation of 1-methyl-1H-benzimidazole (MBI)-modified nanoparticles.{33} Mesoporous monolithic silica gels can also be prepared from Chloromethyltrimethoxysilane. {34} |
| General Description | Chloromethyltrimethoxysilane (CMTMS) is a trialkoxysilane with chloromethyl as the organofunctional group having hydrophobic characteristics. Chloromethyl is the electron withdrawing group that improves the mechanical properties of the molecule. CMTMS is mainly utilized as a silane based precursor material for the preparation of surface enhancement based coatings and other silane based products. |
| Synthesis | 1558-25-4 149-73-5 5926-26-1 The general procedure for the synthesis of chloromethyltrimethoxysilane from chloromethyltrichlorosilane and trimethyl orthoformate was as follows: 570.2 g (3.1 mol) of chloromethyltrichlorosilane was slowly added dropwise to 1127.8 g (10.64 mol) of trimethyl orthoformate, and the dropwise acceleration was controlled so that the reaction mixture was kept at a slight boiling state. After the dropwise addition was completed, the reaction system was heated to 90°C and the reaction was maintained at this temperature for 5 hours. Upon completion of the reaction, the reaction mixture was purified by distillation, resulting in 449.8 g of the target product chloromethyltrimethoxysilane (Compound 2a). The structure of the product was confirmed by 1H NMR spectrum with the following chemical shifts δ (ppm): 2.77 (single peak, 2H, CH2), 3.58 (single peak, 9H, OCH3). |
| References | [1] Russian Journal of General Chemistry, 2016, vol. 86, # 8, p. 1859 - 1863 [2] Zh. Obshch. Khim., 2016, vol. 86, # 8, p. 1321 - 1326,6 |
Chloromethyltrimethoxysilane Preparation Products And Raw materials
| Raw materials | (Chloromethyl)trichlorosilane-->Trimethoxymethane |
