Thiobis(hexamethyldisilazane)
Also known as: Bis[bis(trimethylsilyl)amino] sulfide, Bis[bis(trimethylsilyl)amino]sulfane, N,N,N',N'-Tetrakis(trimethylsilyl)diaminosulfan, N,N,N',N'-Tetrakis(trimethylsilyl)sulfur diamide, Sulfoxylic diamide, tetrakis(trimethylsilyl)-, Sulfurbis[bis(trimethylsilyl)amide], 4-Thia-3,5-diaza-2,6-disilaheptane,2,2,6,6-tetramethyl-3,5-bis(trimethylsilyl)-
Thiobis(hexamethyldisilazane) (CAS 18243-89-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H36N2SSi4 and a molecular weight of 352.83500 g/mol. Key properties include a melting point of 65-67ºC(lit.), a boiling point of 142-143ºC15 mm Hg(lit.), a density of 0.886g/cm3 and a flash point of 141.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18243-89-5
- Jingsj CID
- J-1359411-1
- Molecular Formula
- C12H36N2SSi4
- Molecular Weight
- 352.83500 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 65-67ºC(lit.) |
|---|---|
| Boiling Point | 142-143ºC15 mm Hg(lit.) |
| Density | 0.886g/cm3 |
| Flash Point | 141.2ºC |
| Exact Mass | 352.16800 |
| PSA | 31.78000 |
| LogP | 5.49320 |
| Appearance | solid |
| Vapor Pressure | 0.000624mmHg at 25°C |
| Refractive Index | 1.454 |
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Thiobis(hexamethyldisilazane)?
The CAS number of Thiobis(hexamethyldisilazane) is 18243-89-5.
What are the molecular formula and molecular weight of Thiobis(hexamethyldisilazane)?
Thiobis(hexamethyldisilazane) has molecular formula C12H36N2SSi4 and molecular weight 352.83500 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Thiobis(hexamethyldisilazane) (CAS 18243-89-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359411-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.