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|Section2= |Section4= }} Glyoxylic acid or oxoacetic acid is an organic compound. Together with acetic acid, glycolic acid, and oxalic acid, glyoxylic acid is one of the C2 carboxylic acids. It is a colourless solid that occurs naturally and is useful industrially. ==Structure and nomenclature== Glyoxylic acid is usually described with the chemical formula OCHCO2H, i.e. containing an aldehyde functional group (see image in upper right). In fact the aldehyde is not observed in solution or as a solid. In general aldehydes with electron-withdrawing substituents often exist mainly as their hydrate. Thus, the formula for glyoxylic acid is really (HO)2CHCO2H, described as the "monohydrate." This diol exists in equilibrium with the dimeric hemiacetal in solution:〔Georges Mattioda and Yani Christidis “Glyoxylic Acid” Ullmann's Encyclopedia of Industrial Chemistry, 2002, Wiley-VCH, Weinheim. 〕 Henry's law constant of glyoxylic acid is KH = 1.09 × 104 × exp(× 103/R) × (1/T − 1/298) ). :2 (HO)2CHCO2H O()2 + H2O 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Glyoxylic acid」の詳細全文を読む スポンサード リンク
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