Cyclohexasiloxane (CAS 540-97-6) — formula C12H36O6Si6, molecular weight 444.92; category fine chemicals.
Cyclohexasiloxane (CAS 540-97-6) is a chemical raw material in the fine chemicals category. Its molecular formula C12H36O6Si6 comprises 12 C, 36 H, 6 O, 6 Si atoms. Its molecular weight is about 444.92. Reported physicochemical data: melting point around -3 °C, boiling point around 245 °C, LogP about log Kow = 8.87. 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 | 540-97-6 |
|---|---|
| Molecular Formula | C12H36O6Si6 |
| Molecular Weight | 444.92 |
| Melting Point | -3 °C |
| Boiling Point | 245 °C |
| LogP | log Kow = 8.87 |
| Applications | Electronics, furniture, health-care products, cookware, and medical devices, Field of application: Surface treatments |
| Category | Fine Chemicals|Cosmetic Raw Materials |
Documented applications: Electronics, furniture, health-care products, cookware, and medical devices, Field of application: Surface treatments.
Cyclohexasiloxane is a high-value fine compound with CAS registry number 540-97-6 and molecular formula C12H36O6Si6 (molecular weight 444.92), belonging to the fine chemicals segment of chemical raw materials.
CAS number: 540-97-6
Its molecular formula C12H36O6Si6 comprises 12 C, 36 H, 6 O, 6 Si atoms.
Also known as: Cyclohexasiloxane · 环六硅氧烷
Category: fine chemicals / cosmetic raw materials
The CAS registry number of Cyclohexasiloxane is 540-97-6.
Molecular formula C12H36O6Si6, molecular weight 444.92.
It is also registered under: Cyclohexasiloxane, 环六硅氧烷.
Recorded applications: Electronics, furniture, health-care products, cookware, and medical devices, Field of application: Surface treatments.
Category: Fine Chemicals / Cosmetic Raw Materials.
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 Cyclohexasiloxane (CAS 540-97-6), compiled from public chemistry databases.
| CAS Registry Number | 540-97-6 |
|---|---|
| PubChem CID | 10911 |
| Molecular formula | C12H36O6Si6 |
| IUPAC name | 2,2,4,4,6,6,8,8,10,10,12,12-dodecamethyl-1,3,5,7,9,11-hexaoxa-2,4,6,8,10,12-hexasilacyclododecane |
| UNII (FDA) | XHK3U310BA |
| Molecular Weight | 444.92 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 0 |
| Exact Mass | 444.11274807 |
| Monoisotopic Mass | 444.11274807 |
| Topological Polar Surface Area | 55.4 |
| Heavy Atom Count | 24 |
| Boiling Point | 245 °C |
|---|---|
| Melting Point | -3 °C |
| Flash Point | 91 °C (196 °F) - closed cup |
| Solubility | In water, 0.0051 mg/L at 23 °C |
| Density | 0.9672 g/cu cm at 25 °C |
| Vapor Pressure | 0.0169 mm Hg at 25 °C |
| LogP | log Kow = 8.87 |
| Viscosity | 6.62 cSt |
| Surface Tension | 19.2 mN/m at 20 °C; 18.8 mN/m at 25 °C |
DODECAMETHYLCYCLOHEXASILOXANE; 540-97-6; Cyclohexasiloxane, dodecamethyl-; Cyclomethicone 6; XHK3U310BA; XIAMETER PMX-0246; DTXSID6027183; RefChem:590100; DTXCID507183; 208-762-8; 2,2,4,4,6,6,8,8,10,10,12,12-dodecamethyl-1,3,5,7,9,11-hexaoxa-2,4,6,8,10,12-hexasilacyclododecane; Cyclohexasiloxane; MFCD00144215; Simethicone Impurity 5; 2,2,4,4,6,6,8,8,10,10,12,12-Dodecamethylcyclohexasiloxane; S08515
| Regulatory & Food Contact | FDA Cumulative Estimated Daily Intake (CEDI): FCS DODECAMETHYLCYCLOHEXASILOXANE (D6) CIR / INCI: Cosmetics ingredient -> Conditioning/Emollient; Moisturizing/Humectant; Other (Specify); Solvent CIR / INCI: Hair conditioning; Solvent; Emollient |
|---|---|
| GHS notification summary | 81.5% (365 / 448) |
| GHS notification summary | 81.5% (365 / 448) |
|---|---|
| Reported hazard statements | H413 (12.9%), H227 |
This chemical does not meet GHS hazard criteria for 81.5% (365 of 448) of all reports.
H413 (12.9%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard]
Cyclohexasiloxane · CAS 540-97-6 · C12H36O6Si6. UNII XHK3U310BA. Boiling Point: 245 °C; Melting Point: -3 °C; Flash Point: 91 °C (196 °F) - closed cup.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 环六硅氧烷