2,4-Dimethylbenzoyl chloride

2,4-二甲基苯甲酰氯

Also known as: Benzoyl chloride, 2,4-dimethyl-, 4-(Chlorocarbonyl)-m-xylene, 4-(Chloroformyl)-m-xylene, Buttpark 48\06-96, MFCD00798005, xyloyl chloride

2,4-Dimethylbenzoyl chloride (CAS 21900-42-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H9ClO and a molecular weight of 168.62000 g/mol. It is also known as Benzoyl chloride, 2,4-dimethyl-, 4-(Chlorocarbonyl)-m-xylene and 4-(Chloroformyl)-m-xylene. Key properties include a boiling point of 122°C/10mm, a density of 1.136g/cm3 and a flash point of 102.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21900-42-5
Jingsj CID
J-9941-3
Molecular Formula
C9H9ClO
Chinese Name
2,4-二甲基苯甲酰氯
Molecular Weight
168.62000 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point122°C/10mm
Density1.136g/cm3
Flash Point102.8ºC

Frequently Asked Questions

What is the CAS number of 2,4-Dimethylbenzoyl chloride?

The CAS number of 2,4-Dimethylbenzoyl chloride is 21900-42-5.

What are the molecular formula and molecular weight of 2,4-Dimethylbenzoyl chloride?

2,4-Dimethylbenzoyl chloride has molecular formula C9H9ClO and molecular weight 168.62000 g/mol.

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

Last updated:

How to cite: Jingsj. "2,4-Dimethylbenzoyl chloride (CAS 21900-42-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9941-3 (accessed 2026-10-22).

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