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1,1-dimethylsila-20-crown-7

1,1-二甲基硅-20-冠-7

Also known as: 1,1-DIMETHYLSILA-20-CROWN-7, DIMETHYLSILA-20-CROWN-7, 2,2-Dimethyl-1,3,6,9,12,15,18-heptaoxa-2-silacycloicosane, 1,1-dimethyl-2,5,8,11,14,17,20-heptaoxa-1-silacycloicosane, 1,3,6,9,12,15,18-Heptaoxa-2-silacycloeicosane, 2,2-dimethyl-

1,1-dimethylsila-20-crown-7 (CAS 83890-23-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H30O7Si and a molecular weight of 338.46900 g/mol. It is also known as 1,1-DIMETHYLSILA-20-CROWN-7, DIMETHYLSILA-20-CROWN-7 and 2,2-Dimethyl-1,3,6,9,12,15,18-heptaoxa-2-silacycloicosane. Key properties include a boiling point of 274ºC, a density of 1.09 and a flash point of >110ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
83890-23-7
Jingsj CID
J-1446612-4
Molecular Formula
C14H30O7Si
Chinese Name
1,1-二甲基硅-20-冠-7
Molecular Weight
338.46900 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point274ºC
Density1.09
Flash Point>110ºC

Frequently Asked Questions

What is the CAS number of 1,1-dimethylsila-20-crown-7?

The CAS number of 1,1-dimethylsila-20-crown-7 is 83890-23-7.

What are the molecular formula and molecular weight of 1,1-dimethylsila-20-crown-7?

1,1-dimethylsila-20-crown-7 has molecular formula C14H30O7Si and molecular weight 338.46900 g/mol.

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

Last updated:

How to cite: Jingsj. "1,1-dimethylsila-20-crown-7 (CAS 83890-23-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1446612-4 (accessed 2026-10-25).

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