1,1-Dichloro-3,3-dimethyl-2-butanone

1,1-二氯频哪酮

Also known as: 1,1-Dichloropinacolin, Dichloropinacolin, Dichloropinacolone, tert-Butyl Dichloromethyl Ketone, dichloromethyl tert-butyl ketone, 1,1-Dichloropinacoline, 1,1-Dichloro-3,3-dimethylbutan-2-one, 3,3-Dimethyl-1,1-dichlorobutanone-2, Dichloropinakolin

1,1-Dichloro-3,3-dimethyl-2-butanone (CAS 22591-21-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H10Cl2O and a molecular weight of 169.049 g/mol. It is also known as 1,1-Dichloropinacolin, Dichloropinacolin and Dichloropinacolone. Key properties include a melting point of 50ºC, a boiling point of 173.8±20.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 65.0±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
22591-21-5
Jingsj CID
J-17096-3
Molecular Formula
C6H10Cl2O
Chinese Name
1,1-二氯频哪酮
Molecular Weight
169.049 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point50ºC
Boiling Point173.8±20.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point65.0±22.3 °C

Frequently Asked Questions

What is the CAS number of 1,1-Dichloro-3,3-dimethyl-2-butanone?

The CAS number of 1,1-Dichloro-3,3-dimethyl-2-butanone is 22591-21-5.

What are the molecular formula and molecular weight of 1,1-Dichloro-3,3-dimethyl-2-butanone?

1,1-Dichloro-3,3-dimethyl-2-butanone has molecular formula C6H10Cl2O and molecular weight 169.049 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-Dichloro-3,3-dimethyl-2-butanone (CAS 22591-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17096-3 (accessed 2026-10-22).

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