Bis(2,4-dimethylphenyl)methanone

2,2',4,4'-四甲基二苯甲酮

Also known as: 2,2',4,4'-Tetramethylbenzophenone, Tetramethylbenzophenone, 2,4,2',4'-Tetramethylbenzophenone, Methanone, bis(2,4-dimethylphenyl)-

Bis(2,4-dimethylphenyl)methanone (CAS 3478-88-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C17H18O and a molecular weight of 238.324 g/mol. It is also known as 2,2',4,4'-Tetramethylbenzophenone, Tetramethylbenzophenone and 2,4,2',4'-Tetramethylbenzophenone. Key properties include a boiling point of 345.9±11.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 146.7±14.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3478-88-4
Jingsj CID
J-7401-2
Molecular Formula
C17H18O
Chinese Name
2,2',4,4'-四甲基二苯甲酮
Molecular Weight
238.324 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point345.9±11.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point146.7±14.2 °C

Frequently Asked Questions

What is the CAS number of Bis(2,4-dimethylphenyl)methanone?

The CAS number of Bis(2,4-dimethylphenyl)methanone is 3478-88-4.

What are the molecular formula and molecular weight of Bis(2,4-dimethylphenyl)methanone?

Bis(2,4-dimethylphenyl)methanone has molecular formula C17H18O and molecular weight 238.324 g/mol.

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

Last updated:

How to cite: Jingsj. "Bis(2,4-dimethylphenyl)methanone (CAS 3478-88-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7401-2 (accessed 2026-10-22).

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