Article · Wikipedia archive · Last revised Jul 21, 2026

Acetoacetamide

Acetoacetamide is an organic compound with the formula CH3COCH2CONH2. It is the amide of acetoacetic acid. It is produced by treating diketene with aqueous ammonia

Last revised
Jul 21, 2026
Read time
≈ 1 min
Length
286 w
Citations
5
Source
Acetoacetamide
source ↗
Names
Other names
3-oxobutanamide, 3-oxobutyramide
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.025.250
EC Number
  • 227-774-4
KEGG
  • InChI=1S/C4H7NO2/c1-3(6)2-4(5)7/h2H2,1H3,(H2,5,7)
    Key: GCPWJFKTWGFEHH-UHFFFAOYSA-N
  • CC(=O)CC(=O)N
Properties
C4H7NO2
Molar mass 101.105 g·mol−1
Appearance white solid
Melting point 53-56
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Acetoacetamide is an organic compound with the formula CH3COCH2CONH2. It is the amide of acetoacetic acid. It is produced by treating diketene with aqueous ammonia1

It results from degradation of the sweetner acesulfame potassium.2

Acetoacetanilide (CH3COCH2CONH2) is the N-phenyl derivative of acetoacetamide. It is also prepared from diketene.3 It and various derivatives are used in the production of organic pigments called arylide yellows, one example being Pigment Yellow 74. Many analogues have been prepared.4 To make the dyes, acetoacetanilides are coupled to diazonium salts, "azo coupling".5

Acetoacetylation with diketene followed by diazo coupling. The ketohydrazone tautomer is shown. source ↗
References

References

  1. Miller, Raimund; Abaecherli, Claudio; Said, Adel; Jackson, Barry (2001). "Ketenes". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a15_063. ISBN 978-3-527-30385-4.
  2. George, V.; Arora, S.; Wadhwa, B. K.; Singh, A. K. (August 2010). "Analysis of multiple sweeteners and their degradation products in lassi by HPLC and HPTLC plates". Journal of Food Science and Technology. 47 (4): 408–413. doi:10.1007/s13197-010-0067-4. ISSN 0022-1155. PMC 3551007. PMID 23572661.
  3. Williams, Jonathan W.; Krynitsky, John A. (1941). "Acetoacetanilide". Organic Syntheses. 21: 4. doi:10.15227/orgsyn.021.0004.
  4. Jaffe, Edward E. (2004). "Pigments, Organic". Kirk-Othmer Encyclopedia of Chemical Technology. doi:10.1002/0471238961.151807011001060605.a01.pub2. ISBN 978-0-471-48494-3.
  5. K. Hunger. W. Herbst "Pigments, Organic" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2012. doi:10.1002/14356007.a20_371