2,2,4,4-Tetramethyl-1,3-cyclobutanedione

2,2,4,4-四甲基-1,3-环丁二酮

Also known as: 2,2,4,4-Tetramethyl-1,3-cyclobutanedione, Dimethyl Ketene Dimer, Tetramethyl-1,3-cyclobutanedione, Tetramethylcyclobutane-1,3-dione, 2,2,4,4-tetramethylcyclobutane-1,3-dione, 2,2,4,4-Tetramethyl cyclobutane-1,3-dione, 1,3-Cyclobutanedione, 2,2,4,4-tetramethyl-, TETRAMETHYL-1,3-CYCLOBUTANEDIONE, TETRAMETHYLCYCLOBUTANE-1,3-DIONE, DIMETHYL KETENE DIMER, 2,2,4,4-TETRAMETHYL-1,3-CYCLOBUTANEDIONE

2,2,4,4-Tetramethyl-1,3-cyclobutanedione (CAS 933-52-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H12O2 and a molecular weight of 140.180 g/mol. It is also known as Dimethyl Ketene Dimer, Tetramethyl-1,3-cyclobutanedione and Tetramethylcyclobutane-1,3-dione. Key properties include a melting point of 114-116 °C(lit.), a boiling point of 208.3±15.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 74.3±17.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

933-52-8

Jingsj CID

J-36407-0

Molecular Formula

C₈H₁₂O₂

Chinese Name

2,2,4,4-四甲基-1,3-环丁二酮

Molecular Weight

140.180 g/mol

Category

Ketones

Last updated

8/21/2026