1,1,3,3-Tetraisopropyldisiloxane
Also known as: 1,1,3,3-TETRAISOPROPYLDISILOXANE, 1,1,3,3-Tetraisopropyl Disiloxane, Tetraisopropyldisiloxane, Disiloxane, 1,1,3,3-tetrakis(1-methylethyl)-, MFCD00012171, [di(propan-2-yl)-λ3-silanyl]oxy-di(propan-2-yl)silicon
1,1,3,3-Tetraisopropyldisiloxane (CAS 18043-71-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H28OSi2 and a molecular weight of 246.537 g/mol. Key properties include a boiling point of 282.7±0.0 °C at 760 mmHg, a density of 0.89 g/mL at 25 °C(lit.) and a flash point of 95.2±18.7 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 18043-71-5
- Jingsj CID
- J-49838-4
- Molecular Formula
- C12H28OSi2
- Molecular Weight
- 246.537 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 282.7±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.89 g/mL at 25 °C(lit.) |
| Flash Point | 95.2±18.7 °C |
| Exact Mass | 246.183517 |
| PSA | 9.23000 |
| LogP | 7.63 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | n20/D 1.433(lit.) |
| Storage Conditions | 2~8℃ |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1,1,3,3-Tetraisopropyldisiloxane?
The CAS number of 1,1,3,3-Tetraisopropyldisiloxane is 18043-71-5.
What are the molecular formula and molecular weight of 1,1,3,3-Tetraisopropyldisiloxane?
1,1,3,3-Tetraisopropyldisiloxane has molecular formula C12H28OSi2 and molecular weight 246.537 g/mol.
What are the upstream and downstream products of 1,1,3,3-Tetraisopropyldisiloxane?
For 1,1,3,3-Tetraisopropyldisiloxane, Upstream Products: Isopropylmagnesium bromide, 2-Bromopropane, 1,3-Dichloro-1,1,3,3-tetraisopropyldisiloxane; Downstream Products: 1,3-Dichloro-1,1,3,3-tetraisopropyldisiloxane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,1,3,3-Tetraisopropyldisiloxane (CAS 18043-71-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49838-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.