Tetraisopropyl orthosilicate

硅酸异丙酯

Also known as: Tetraisopropoxysilane, Tetra(isopropoxy)silane, Tetrakis(isopropoxy)silane, Silicic acid (H4SiO4), tetrakis(1-methylethyl) ester, Silicon tetraisopropoxide, Isopropyl silicate, Tetrapropan-2-yl silicate, Tetraisopropyl silicate

Tetraisopropyl orthosilicate (CAS 1992-48-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H28O4Si and a molecular weight of 264.434 g/mol. It is also known as Tetraisopropoxysilane, Tetra(isopropoxy)silane and Tetrakis(isopropoxy)silane. Key properties include a melting point of <0ºC, a boiling point of 228.0±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 75.3±20.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1992-48-9
Jingsj CID
J-31182-5
Molecular Formula
C12H28O4Si
Chinese Name
硅酸异丙酯
Molecular Weight
264.434 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point<0ºC
Boiling Point228.0±8.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point75.3±20.3 °C

Frequently Asked Questions

What is the CAS number of Tetraisopropyl orthosilicate?

The CAS number of Tetraisopropyl orthosilicate is 1992-48-9.

What are the molecular formula and molecular weight of Tetraisopropyl orthosilicate?

Tetraisopropyl orthosilicate has molecular formula C12H28O4Si and molecular weight 264.434 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Tetraisopropyl orthosilicate (CAS 1992-48-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31182-5 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.