diacetyl

(redirected from 2,3-butanedione)
Also found in: Dictionary, Medical.

diacetyl

[dī′as·əd·əl]
(organic chemistry)
CH3COCOCH3 A yellowish-green liquid with a boiling point of 88°C; has a strong odor that resembles quinone; occurs naturally in bay oil and butter and is produced from methyl ethyl ketone or by a special fermentation of glucose; used as an aroma carrier in food manufacturing. Also known as biacetyl.
A prefix indicating two acetyl groups.
References in periodicals archive ?
Both 2,3-butanedione and 3-hydroxy-2-butanone percentages were highest (p<0.01) in KC, while HO and AN had similar percentages of these compounds.
Effects of 2,3-butanedione monoxime on the crossbridge kinetics in frog single muscle fibres.
Abbreviations ROS: Reactive oxygen species NVM: Neonatal ventricular myocyte ACM: Adult cardiac myocyte shRNA: Short hairpin RNA Tempol: 4-Hydroxy-,-tetramethylpiperidinyl- oxy Mito-Temp: (2-(,-Tetramethylpiperidin-1-oxyl-4-ylamino)-2-oxoethyl) triphenylphospho-nium chloride Mn-SOD: Manganese superoxide dismutase BDM: 2,3-Butanedione monoxime PTP: Permeability transition pores.
After diacetyl (2,3-butanedione) was shown to cause bronchiolitis obliterans in workers who inhaled high levels of this volatile butter flavoring at microwave popcorn processing plants, (1), (2), (3) some manufacturers switched to a substitute assumed to be safer.
Properties of 2,3-butanedione and 1-phenyl-1,2-propanedione as new photosensitizers for visible light cured dental resin composites.
Here the receptor is collagen protein and the ligands are 2,3-butanedione dioxime,1-bromo-2,5-pyrrolidinedione, 2-ethyl-1,2-diphenyl-1-butanol, 5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one and 7-amino-4-methyl[1,8]naphthyridin-2-ol are docked and the docked complex is saved in PDB extension.
We have reported that sensitivity to NZ is also enhanced in a dose-dependent manner by co-treatment with the compound 2,3-Butanedione monoxime (BDM) (22), a disruptor of the cortical cytoskeleton in mammalian and fungal cells (23).
During adsorbed MEK oxidation by ozonated air, only two sub-products were detected: 2,3-butanedione and acetic acid.
Inhalation toxicity of the flavoring agent, diacetyl (2,3-butanedione), in the upper respiratory tract of rats.

Full browser ?