1.0 2016-05-19 03:00:11 UTC 2026-08-24 18:23:19 UTC Octamethyltrisiloxane SmallMolecule Octamethyltrisiloxane (C8H24O2Si3) is a chemical compound with an average molecular weight of 236.53 g/mol. Octamethyltrisiloxane belongs to the organosilicon compounds, a subclass of organometalloid compounds within the organic compounds. In industrial applications, the compound is utilized as a defoamer as well as a softener and conditioner. It is also used in various plastics, including Polycarbonate, Polyamide, Polyethylene Terephthalate, Polypropylene, Acrylonitrile butadiene styrene, Low-Density Polyethylene, and High-Density Polyethylene. The compound is found in or released from 42 recorded sources. Within electrical and electronic equipment, it is associated with antennas, amplifiers, adjustable resistors, coils, auxiliary devices, and 21 other items. It is present in building and construction materials such as floors, ceilings, and tents or canopies. In the category of household cleaning and consumer products, it is found in soap dispensers, bleaching agents, cigar cigarettes, pipe accessories, other smoking requisites, and one additional source. Regarding food, food processing, and cookware, it is linked to food contact materials and the preparation of wort, vinegar, wine or sparkling wine, and fermentation processes for beer, among one other source. Additionally, it is found in drinking water and water supply. Recorded exposure routes for this compound include oral, inhalation, and touch. 2,2,4,4,6,6-hexamethyl-3,5-dioxa-2,4,6-trisilaheptane Polydimethylsiloxane Siloxanes and Silicones, di-Me Trisiloxane, octamethyl- C8H24O2Si3 236.533 236.108409618 2,2,4,4,6,6-hexamethyl-3,5-dioxa-2,4,6-trisilaheptane octamethyltrisiloxane 107-51-7 C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C InChI=1S/C8H24O2Si3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h1-8H3 CXQXSVUQTKDNFP-UHFFFAOYSA-N Organic compounds Organometallic compounds Organometalloid compounds Organosilicon compounds Siloxanes Hydrocarbon derivatives Organic metalloid salts Organic oxygen compounds Trialkylheterosilanes Aliphatic acyclic compound Hydrocarbon derivative Organic metalloid salt Organic oxygen compound Organic salt Organoheterosilane Siloxane Trialkylheterosilane Aliphatic acyclic compounds organosilicon compound Detected and Not Quantified logp 3.68 ALOGPS logs -3.71 ALOGPS solubility 4.63e-02 g/l ALOGPS logp 3.22 ChemAxon pka_strongest_basic -3.6 ChemAxon iupac 2,2,4,4,6,6-hexamethyl-3,5-dioxa-2,4,6-trisilaheptane ChemAxon average_mass 236.533 ChemAxon mono_mass 236.108409618 ChemAxon smiles C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C ChemAxon formula C8H24O2Si3 ChemAxon inchi InChI=1S/C8H24O2Si3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h1-8H3 ChemAxon inchikey CXQXSVUQTKDNFP-UHFFFAOYSA-N ChemAxon polar_surface_area 18.46 ChemAxon refractivity 49.27 ChemAxon polarizability 24.69 ChemAxon rotatable_bond_count 4 ChemAxon acceptor_count 2 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon #<HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f721fc05a10> 24705