1.0 2016-05-19 03:06:02 UTC 2026-08-22 15:44:18 UTC Methyltrimethoxysilane SmallMolecule Methyltrimethoxysilane is an organosilicon compound with the chemical formula C4H12O3Si and an average molecular weight of 136.22 g/mol. Methyltrimethoxysilane belongs to the organosilicon compounds, a subclass of organometalloid compounds within the organic compounds. In industrial applications, the compound serves several roles, functioning as a film former, binder, hardener, and dispersing agent. It is further utilized as a chemical reaction regulator, an adhesion/cohesion promoter, and a dehydrating agent (desiccant). The compound is found in or released from 35 recorded sources. Within electrical and electronic equipment, it is associated with amplifiers, antennas, coils, auxiliary devices, adjustable resistors, and 17 other items. In the building and construction sector, it is found in floors, ceilings, fencing, and sunshades awnings or outside screens. Household cleaning and consumer products containing the compound include soap detergents, bleaching agents, perfumes within detergents and soaps, ash trays, and tobacco smoke filters. Additionally, it has been identified in household items such as coins and within drinking water and water supply. The recorded exposure route for this compound is oral. Silane, trimethoxymethyl- trimethoxy(methyl)silane Trimethoxymethylsilane C4H12O3Si 136.222 136.055570781 trimethoxy(methyl)silane methyltrimethoxysilane 1185-55-3 CO[Si](C)(OC)OC InChI=1S/C4H12O3Si/c1-5-8(4,6-2)7-3/h1-4H3 BFXIKLCIZHOAAZ-UHFFFAOYSA-N Organic compounds Organometallic compounds Organometalloid compounds Organosilicon compounds Trialkoxysilanes Hydrocarbon derivatives Organic metalloid salts Organoheterosilanes Organooxygen compounds Silyl ethers Aliphatic acyclic compound Hydrocarbon derivative Organic metalloid salt Organic oxygen compound Organic salt Organoheterosilane Organooxygen compound Silyl ether Trialkoxysilane Aliphatic acyclic compounds Detected and Not Quantified logp 0.90 ALOGPS logs -0.33 ALOGPS solubility 6.34e+01 g/l ALOGPS logp 0.63 ChemAxon pka_strongest_basic -3.8 ChemAxon iupac trimethoxy(methyl)silane ChemAxon average_mass 136.222 ChemAxon mono_mass 136.055570781 ChemAxon smiles CO[Si](C)(OC)OC ChemAxon formula C4H12O3Si ChemAxon inchi InChI=1S/C4H12O3Si/c1-5-8(4,6-2)7-3/h1-4H3 ChemAxon inchikey BFXIKLCIZHOAAZ-UHFFFAOYSA-N ChemAxon polar_surface_area 27.69 ChemAxon refractivity 26.47 ChemAxon polarizability 13.24 ChemAxon rotatable_bond_count 3 ChemAxon acceptor_count 3 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon #<HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f7227de4ba8> 14456