Ketohexose A ketose SUGAR with six carbon atoms, e.g. fructose.

一种六碳的酮。例如果。

Glucose cyclizes to form asix- membered pyranose ring whilst five –carbon surgars and six-carbon ketose sugars (ketohexoses) such as fructnose rings.

环状结构 四碳和更大的能环化，醛基或酮基与的另一碳原子上的羟基反应。