3-Benzylidene-2,4-pentanedione

3-亚苄基-2,4-戊二酮

Also known as: 3-Benzylideneacetylacetone, 3-Benzylidenepentane-2,4-dione, Benzalacetylacetone, Benzylideneacetylacetone, 1,1-Diacetyl-2-phenylethylene, (2,2-Diacetylvinyl)benzene, 2,4-Pentanedione, 3-(phenylmethylene)-, 2,4-Pentanedione, 3-benzylidene-, 3-(Phenylmethylene)pentane-2,4-dione, 3-(Phenylmethylidene)pentane-2,4-dione, 2-Acetyl-1-phenylbut-1-en-3-one

3-Benzylidene-2,4-pentanedione (CAS 4335-90-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H12O2 and a molecular weight of 188.22200 g/mol. It is also known as 3-Benzylideneacetylacetone, 3-Benzylidenepentane-2,4-dione and Benzalacetylacetone. Key properties include a boiling point of 185-188 °C15 mm Hg(lit.), a density of 1.081 g/mL at 25 °C(lit.) and a flash point of >230 °F. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

4335-90-4

Jingsj CID

J-19050-5

Molecular Formula

C₁₂H₁₂O₂

Chinese Name

3-亚苄基-2,4-戊二酮

Molecular Weight

188.22200 g/mol

Category

Ketones

Last updated

8/21/2026