3-Hydroxy-3-methyl-2-butanone

3-羟基-3-甲基-2-丁酮

Also known as: 1-Hydroxy-1-methylethyl methyl ketone, 2-Butanone, 3-hydroxy-3-methyl-, 2-Hydroxy-2-methyl-3-butanone, 2-Methyl-2-hydroxybutan-3-one, 3-hydroxy-3-methylbutan-2-one, 3-methylacetoin, Acetyldimethylcarbinol, Dimethylacetylcarbinol, Methylacetoin

3-Hydroxy-3-methyl-2-butanone (CAS 115-22-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H10O2 and a molecular weight of 102.132 g/mol. It is also known as 1-Hydroxy-1-methylethyl methyl ketone, 2-Butanone, 3-hydroxy-3-methyl- and 2-Hydroxy-2-methyl-3-butanone. Key properties include a melting point of 140-141 °C(lit.), a boiling point of 145.2±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 42.2±0.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

115-22-0

Jingsj CID

J-33843-1

Molecular Formula

C₅H₁₀O₂

Chinese Name

3-羟基-3-甲基-2-丁酮

Molecular Weight

102.132 g/mol

Category

Ketones

Last updated

8/21/2026