Octamethyltrisiloxane (CAS 107-51-7) — formula C8H24O2Si3, molecular weight 236.53; category organic chemicals.
Documented applications: Uses: Used as a base for extreme temperature silicone oils, fluids and as a foam suppressant in petroleum lubricating oils, [Merck Index] Used mainly to make polydimethylsiloxane (PDMS) polymers, oligomers, and mixtures, Also used to make basic chemicals, paints, coatings, adhesives, soaps, cleaning compounds, toiletries, plastics, semiconductors, and other electronic components, and in building construction, lubricants, diluents, solvents, and cosmetics, [Government of Canada - Chemicals Management Plan], Semiconductor Manufacturing [Category: Industry], Use Classification: Cosmetics -> Skin conditioning, Industry Uses: Intermediate, Diluent, Heat transferring agent, Other, Consumer Uses: Diluent, Household Products: Cosmetics product ingredient: Trisiloxane, octamethyl- (Octamethyltrisiloxane, Trisiloxane), Reason for Listing: Listed as Persistent, Bioaccumulative, and Inherently Toxic to the environment by the Canadian Environmental Protection Act Environmental Registry Domestic Substances List., Potential Health Impacts: Bioaccumulation, Environmental Persistence, and Undefined Toxicity, Product count: 124, U.S. Production: 2023: 1, 000, 000 - <5, 000 lb, 2022: 1, 2021: 1, 2020: 1, General Manufacturing Information: Other (requires additional information), All Other Chemical Product and Preparation Manufacturing, Electrical Equipment, Appliance, and Component Manufacturing, All Other Basic Inorganic Chemical Manufacturing, Trisiloxane, 1, 3, 5, 5-octamethyl-: ACTIVE.
Octamethyltrisiloxane is a carbon-based organic compound with CAS registry number 107-51-7 and molecular formula C8H24O2Si3 (molecular weight 236.53), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 107-51-7
Its molecular formula C8H24O2Si3 comprises 8 C, 24 H, 2 O, 3 Si atoms.
Also known as: Octamethyltrisiloxane · Dimethylpolysiloxane
Category: organic chemicals
The CAS registry number of Octamethyltrisiloxane is 107-51-7.
Molecular formula C8H24O2Si3, molecular weight 236.53.
It is also registered under: Octamethyltrisiloxane, Dimethylpolysiloxane.
Recorded applications: Uses: Used as a base for extreme temperature silicone oils, fluids and as a foam suppressant in petroleum lubricating oils, [Merck Index] Used mainly to make polydimethylsiloxane (PDMS) polymers, oligomers, and mixtures, Also used to make basic chemicals, paints, coatings, adhesives, soaps, cleaning compounds, toiletries, plastics, semiconductors, and other electronic components, and in building construction, lubricants, diluents, solvents, and cosmetics, [Government of Canada - Chemicals Management Plan], Semiconductor Manufacturing [Category: Industry], Use Classification: Cosmetics -> Skin conditioning, Industry Uses: Intermediate, Diluent, Heat transferring agent, Other, Consumer Uses: Diluent, Household Products: Cosmetics product ingredient: Trisiloxane, octamethyl- (Octamethyltrisiloxane, Trisiloxane), Reason for Listing: Listed as Persistent, Bioaccumulative, and Inherently Toxic to the environment by the Canadian Environmental Protection Act Environmental Registry Domestic Substances List., Potential Health Impacts: Bioaccumulation, Environmental Persistence, and Undefined Toxicity, Product count: 124, U.S. Production: 2023: 1, 000, 000 - <5, 000 lb, 2022: 1, 2021: 1, 2020: 1, General Manufacturing Information: Other (requires additional information), All Other Chemical Product and Preparation Manufacturing, Electrical Equipment, Appliance, and Component Manufacturing, All Other Basic Inorganic Chemical Manufacturing, Trisiloxane, 1, 3, 5, 5-octamethyl-: ACTIVE.
Category: Organic Chemicals.
Public-database records for Octamethyltrisiloxane (CAS 107-51-7), reproduced here for independent cross-checking.
| GHS notification summary | 11.1% (49 / 443) |
|---|---|
| Reported hazard statements | H226 (88.9%), H413 (27.1%) |
This chemical does not meet GHS hazard criteria for 11.1% (49 of 443) of reports.
H226 (88.9%): Flammable liquid and vapor [Warning Flammable liquids]
| Regulatory & Food Contact | CIR / INCI: Skin conditioning |
|---|---|
| GHS notification summary | 11.1% (49 / 443) |
| 蒸气压 | 3.34 [mmHg] |
|---|
| CAS Registry Number | 107-51-7 |
|---|---|
| PubChem CID | 24705 |
| 分子式 | C8H24O2Si3 |
| IUPAC 名称 | dimethyl-bis(trimethylsilyloxy)silane |
| UNII（FDA） | 9G1ZW13R0G |
OCTAMETHYLTRISILOXANE; 107-51-7; Trisiloxane, octamethyl-; 1,1,1,3,3,5,5,5-Octamethyltrisiloxane; dimethyl-bis(trimethylsilyloxy)silane; Pentamethyl(trimethylsilyloxy)disiloxane; DTXSID9040710; Dimethylbis(trimethylsiloxy)silane; 9G1ZW13R0G; Pentamethyl(trimethylsiloxy)disiloxane; CHEBI:9147; DTXCID7020710; RefChem:1093790; 203-497-4; Dimethicone 350; Simethicone Impurity 6
| 分子量 | 236.53 |
|---|---|
| 氢键供体数 | 0 |
| 氢键受体数 | 2 |
| 可旋转键数 | 4 |
| 精确质量 | 236.10840961 |
| 单同位素质量 | 236.10840961 |
| 拓扑极性表面积 | 18.5 |
| 重原子数 | 13 |
| 形式电荷 | 0 |
| 复杂度 | 149 |
Octamethyltrisiloxane · CAS 107-51-7 · C8H24O2Si3. UNII 9G1ZW13R0G. 蒸气压: 3.34 [mmHg].
Source: PubChem / Wikidata; the batch COA governs where values differ.
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