3d image of diacetyl skeletal formula

diacetyl butanedione biacetyl dimethyl diketone diketobutane vicinal flavoring buttery flavor fermentation pyruvate acetyl coa cultured butter buttermilk cream food artificial butter margarines beta-carotene additive adjuvants ingredient agent electronic cigarettes liquids alcoholic beverages butter-flavoring substance matter material compound component stuff reagent functional group precursor synthesis reaction production building block molecule molecular formula skeletal structural structure geometry ball stick 3d