Dibutyl butylphosphonate

丁基膦酸二丁酯

Also known as: Dibutyl butanephosphonate, Butylphosphonic acid dibutyl ester, Di-n-butyl n-butylphosphonate, Phosphonic acid, butyl-, dibutyl ester, 1-[butoxy(butyl)phosphoryl]oxybutane, NSC 2666, TC 44

Dibutyl butylphosphonate (CAS 78-46-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H27O3P and a molecular weight of 250.31500 g/mol. It is also known as Dibutyl butanephosphonate, Butylphosphonic acid dibutyl ester and Di-n-butyl n-butylphosphonate. Key properties include a boiling point of 283ºC, a density of 0.946 and a flash point of >110ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
78-46-6
Jingsj CID
J-36983-9
Molecular Formula
C12H27O3P
Chinese Name
丁基膦酸二丁酯
Molecular Weight
250.31500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point283ºC
Density0.946
Flash Point>110ºC

Frequently Asked Questions

What is the CAS number of Dibutyl butylphosphonate?

The CAS number of Dibutyl butylphosphonate is 78-46-6.

What are the molecular formula and molecular weight of Dibutyl butylphosphonate?

Dibutyl butylphosphonate has molecular formula C12H27O3P and molecular weight 250.31500 g/mol.

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

Last updated:

How to cite: Jingsj. "Dibutyl butylphosphonate (CAS 78-46-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36983-9 (accessed 2026-10-22).

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