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|Section2= |Section7= |Section8= }} Phenylglyoxal is the organic compound with the formula C6H5C(O)C(O)H. It contains both an aldehyde and a ketone functional group. It is yellow liquid when anhydrous but readily forms a colorless crystalline hydrate. It has been used as a reagent to modify the amino acid, arginine. ==Properties== Like some other aldehydes, phenylglyoxal polymerizes upon standing, as indicated by solidification of the liquid. Upon heating, this polymer "cracks" to give back the yellow aldehyde. Dissolution of phenylglyoxal in water gives crystals of the hydrate: : C6H5C(O)COH + H2O → C6H5C(O)CH(OH)2 Upon heating, the hydrate loses water and regenerates the anhydrous liquid. 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「phenylglyoxal」の詳細全文を読む スポンサード リンク
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