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

一种六碳酮。例。

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 碳和更能环化，醛基或酮基与另一碳原子上羟基反应。