Bis(trimethylsilyl) sulfate
Also known as: Bis(trimethylsilyl)sulfate, Bis(trimethylsilyl) sulphate, Bistrimethylsilylsulfate, Sulfuric acid bis(trimethylsilyl) ester, Sulfuric acid, TMS, MFCD00008268, EINECS 242-192-0
Bis(trimethylsilyl) sulfate (CAS 18306-29-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H18O4SSi2 and a molecular weight of 242.441 g/mol. Key properties include a melting point of 41-44 °C(lit.), a boiling point of 239.4±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 72.2±18.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18306-29-1
- Jingsj CID
- J-6306-9
- Molecular Formula
- C6H18O4SSi2
- Molecular Weight
- 242.441 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 41-44 °C(lit.) |
|---|---|
| Boiling Point | 239.4±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 72.2±18.7 °C |
| Exact Mass | 242.046432 |
| PSA | 60.98000 |
| LogP | 2.80 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.426 |
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 Bis(trimethylsilyl) sulfate?
The CAS number of Bis(trimethylsilyl) sulfate is 18306-29-1.
What are the molecular formula and molecular weight of Bis(trimethylsilyl) sulfate?
Bis(trimethylsilyl) sulfate has molecular formula C6H18O4SSi2 and molecular weight 242.441 g/mol.
What are the upstream and downstream products of Bis(trimethylsilyl) sulfate?
For Bis(trimethylsilyl) sulfate, Upstream Products: Hexamethyldisiloxane, Chlorotrimethylsilane, Heptamethyldisilazane; Downstream Products: Chlorotrimethylsilane, Trimethylsilyl chlorosulfonate, O-Trimethylsilyl chloroacetate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Bis(trimethylsilyl) sulfate (CAS 18306-29-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6306-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.