Dodecamethylpentasiloxane (CAS 141-63-9) — formula C12H36O4Si5, molecular weight 384.84; category organic chemicals.
Dodecamethylpentasiloxane (CAS 141-63-9) is a chemical raw material in the organic chemicals category. Its molecular formula C12H36O4Si5 comprises 12 C, 36 H, 4 O, 5 Si atoms. Its molecular weight is about 384.84. Reported physicochemical data: melting point around -80 °C, boiling point around 230 °C, LogP about log Kow = 9.41. 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 | 141-63-9 |
|---|---|
| Molecular Formula | C12H36O4Si5 |
| Molecular Weight | 384.84 |
| Melting Point | -80 °C |
| Boiling Point | 230 °C |
| LogP | log Kow = 9.41 |
| Applications | extreme-temperature silicone oils/fluids and to suppress foam in petroleum oils, Used to formulate cosmetics and personal care products, in lubricants, greases, and release agents, to make rubber and plastic products |
| Category | Organic Chemicals |
Documented applications: extreme-temperature silicone oils/fluids and to suppress foam in petroleum oils, Used to formulate cosmetics and personal care products, in lubricants, greases, and release agents, to make rubber and plastic products.
Dodecamethylpentasiloxane is a carbon-based organic compound with CAS registry number 141-63-9 and molecular formula C12H36O4Si5 (molecular weight 384.84), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 141-63-9
Its molecular formula C12H36O4Si5 comprises 12 C, 36 H, 4 O, 5 Si atoms.
Also known as: Dodecamethylpentasiloxane · 十二甲基五硅氧烷
Category: organic chemicals
The CAS registry number of Dodecamethylpentasiloxane is 141-63-9.
Molecular formula C12H36O4Si5, molecular weight 384.84.
It is also registered under: Dodecamethylpentasiloxane, 十二甲基五硅氧烷.
Recorded applications: extreme-temperature silicone oils/fluids and to suppress foam in petroleum oils, Used to formulate cosmetics and personal care products, in lubricants, greases, and release agents, to make rubber and plastic products.
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 Dodecamethylpentasiloxane (CAS 141-63-9), compiled from public chemistry databases.
| CAS Registry Number | 141-63-9 |
|---|---|
| PubChem CID | 8853 |
| Molecular formula | C12H36O4Si5 |
| IUPAC name | bis[[dimethyl(trimethylsilyloxy)silyl]oxy]-dimethylsilane |
| UNII (FDA) | 0QDQ2VQ5YJ |
| Molecular Weight | 384.84 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 8 |
| Exact Mass | 384.14599230 |
| Monoisotopic Mass | 384.14599230 |
| Topological Polar Surface Area | 36.9 |
| Heavy Atom Count | 21 |
| Boiling Point | 230 °C |
|---|---|
| Boiling Point | BP: 229 °C at 710 mm Hg |
| Melting Point | -80 °C |
| Solubility | In water, 7.04X10-5 mg/L at 25 °C |
| Density | 0.8755 g/cu cm at 20 °C |
| LogP | log Kow = 9.41 |
| Heat of Vaporization | 50.3 kJ/mol |
DODECAMETHYLPENTASILOXANE; 1,1,1,3,3,5,5,7,7,9,9,9-Dodecamethylpentasiloxane; Pentasiloxane, dodecamethyl-; 0QDQ2VQ5YJ; BRN 1792965; UNII-0QDQ2VQ5YJ; EINECS 205-492-2; HSDB 8419; Pentasiloxane, 1,1,1,3,3,5,5,7,7,9,9,9-dodecamethyl-; DTXSID1044803; CHEBI:84272; EC 205-492-2; PENTASILOXANE, DODECAMETHYL; 4-04-00-04124 (Beilstein Handbook Reference); DODECAMETHYLPENTASILOXANE [MI]; Silicone liquid
| GHS notification summary | 58.5% (203 / 347) |
|---|
| GHS notification summary | 58.5% (203 / 347) |
|---|---|
| Reported hazard statements | H315 (11.5%), H319 (11.5%), H335 (11.5%), H413 (30%), H227 |
This chemical does not meet GHS hazard criteria for 58.5% (203 of 347) of all reports.
H315 (11.5%): Causes skin irritation [Warning Skin corrosion/irritation]
Dodecamethylpentasiloxane · CAS 141-63-9 · C12H36O4Si5. UNII 0QDQ2VQ5YJ. Boiling Point: 230 °C; Boiling Point: BP: 229 °C at 710 mm Hg; Melting Point: -80 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 十二甲基五硅氧烷