Octamethyltrisiloxane (CAS 107-51-7) — formula C8H24O2Si3, molecular weight 236.53; category organic chemicals.
Octamethyltrisiloxane (CAS 107-51-7) is a chemical raw material in the organic chemicals category. Its molecular formula C8H24O2Si3 comprises 8 C, 24 H, 2 O, 3 Si atoms. Its molecular weight is about 236.53. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 107-51-7 |
|---|---|
| Molecular Formula | C8H24O2Si3 |
| Molecular Weight | 236.53 |
| Applications | base for extreme temperature silicone oils/fluids and as a foam suppressant in petroleum lubricating oils, Used mainly to make polydimethylsiloxane (PDMS) polymers, oligomers, and mixtures, Also used to make basic chemicals, paints |
| Category | Organic Chemicals |
Documented applications: base for extreme temperature silicone oils/fluids and as a foam suppressant in petroleum lubricating oils, Used mainly to make polydimethylsiloxane (PDMS) polymers, oligomers, and mixtures, Also used to make basic chemicals, paints.
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: base for extreme temperature silicone oils/fluids and as a foam suppressant in petroleum lubricating oils, Used mainly to make polydimethylsiloxane (PDMS) polymers, oligomers, and mixtures, Also used to make basic chemicals, paints.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Octamethyltrisiloxane (CAS 107-51-7), compiled from public chemistry databases.
| CAS Registry Number | 107-51-7 |
|---|---|
| PubChem CID | 24705 |
| Molecular formula | C8H24O2Si3 |
| IUPAC name | dimethyl-bis(trimethylsilyloxy)silane |
| UNII (FDA) | 9G1ZW13R0G |
| Molecular Weight | 236.53 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 4 |
| Exact Mass | 236.10840961 |
| Monoisotopic Mass | 236.10840961 |
| Topological Polar Surface Area | 18.5 |
| Heavy Atom Count | 13 |
| Vapor Pressure | 3.34 [mmHg] |
|---|
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
| Regulatory & Food Contact | CIR / INCI: Skin conditioning |
|---|---|
| GHS notification summary | 11.1% (49 / 443) |
| 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]
Octamethyltrisiloxane · CAS 107-51-7 · C8H24O2Si3. UNII 9G1ZW13R0G. Vapor Pressure: 3.34 [mmHg].
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: Octamethyltrisiloxane