Methyl Acetoacetate

Other Trading Names:

  • Methyl 3-oxobutanoate
  • Methyl 3-oxobutyrate
  • Acetoacetic acid methyl ester

CAS Number: 105-45-3

HS Code: 29183040

Types of Packaging:

  • 25 Kg Drums
  • 25 Kg Bags
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Methyl Acetoacetate

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Chemical Name

Methyl Acetoacetate

Molecular Formula


CAS Number



White Powder

Grade Standard

Pharmaceutical Grade


Slightly Soluble in Water

Molecular Weight

116.12 g/mol

Melting Point


Boiling Point



1.077 g/mL

Flash Point

70 °C


98% min

Chemical Description

  • Methyl acetoacetate, also known as acetoacetic esters, is a white powder that is sparingly soluble in water.
  • Its molecular formula is C5H8O3, and its molecular weight is 116.12 g/mol.
  • It is versatile in organic chemistry and serves as a precursor for various chemical reactions.
  • Its versatility and reactivity make it a valuable compound in various industries ranging from pharmaceuticals to polymers and flavors.
  • It is used as a pharmaceutical intermediate in the synthesis of many medicines.
  • It is commonly used as a versatile building block in organic synthesis due to its reactivity.
  • It can undergo various reactions, including condensation, alkylation, and Michael addition reactions, to form β-diketones, β-ketoesters, and β-ketoamides, respectively.
  • For instance, it is often used in the synthesis of pharmaceuticals, agrochemicals, and fine chemicals.
  • Methyl acetoacetate is a precursor in the synthesis of various ketones and related compounds.
  • During the condensation reaction, it can be converted into β-diketones, which are important intermediates in the synthesis of pharmaceuticals and other organic compounds.
  • Methyl acetoacetate and its derivatives are used in the production of flavor and fragrance compounds.
  • They can contribute to the aroma and taste of various products.
  • It is used as a solvent in various chemical processes, particularly in applications where its reactivity can be advantageous.
  • Due to its reactivity and ability to participate in polymerization reactions, it is utilized in the production of coatings and adhesives, it is used in the production of coatings and adhesives.
  • It is used in the production of polymers and plastics as a chemical building block.
  • It can undergo polymerization reactions to form polymeric materials with diverse properties.
  • In research laboratories, methyl acetoacetate is often employed as a starting material for the synthesis of novel compounds or for investigating new chemical reactions.
  • It is a stable compound that can be stored at temperatures >30 °C in dry, well-ventilated places.
  • It is available in 25 kg bags and drum packaging.
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Methyl Acetoacetate