Trimethylsilanol
Also known as: hydroxytrimethylsilane, Trimethylhydroxysilane, Silanol, trimethyl-, Silanol, 1,1,1-trimethyl-, Silanole, hydroxy(trimethyl)silane, CCRIS 1320, Adefovir Impurity 11, Medetomidine Impurity 17
Trimethylsilanol (CAS 1066-40-6) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C3H10OSi and a molecular weight of 90.196 g/mol. Key properties include a melting point of -11.99 °C, a boiling point of 75.0±9.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of -0.9±18.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1066-40-6
- Jingsj CID
- J-1494151-6
- Molecular Formula
- C3H10OSi
- Molecular Weight
- 90.196 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -11.99 °C |
|---|---|
| Boiling Point | 75.0±9.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | -0.9±18.7 °C |
| Exact Mass | 90.050095 |
| PSA | 20.23000 |
| LogP | 1.04 |
| Vapor Pressure | 73.9±0.3 mmHg at 25°C |
| Refractive Index | 1.387 |
| Storage Conditions | -20℃ |
| Additional Property | Soluble in water (1.00 mg/ml). |
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 Trimethylsilanol?
The CAS number of Trimethylsilanol is 1066-40-6.
What are the molecular formula and molecular weight of Trimethylsilanol?
Trimethylsilanol has molecular formula C3H10OSi and molecular weight 90.196 g/mol.
What are the upstream and downstream products of Trimethylsilanol?
For Trimethylsilanol, Upstream Products: Trimethylfluorosilane, 1,1,1,3,3,3-Hexamethyldisilazane, 1-phenyl-2-(trimethylsilyl)acetylene; Downstream Products: 1,3-Bis(4-hydroxybutyl)tetramethyldisiloxane, Tetrakis(trimethylsiloxy)silane, Sodium trimethylsilanolate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Trimethylsilanol (CAS 1066-40-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494151-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.