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

一种六糖。例如果糖。

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 糖和更大糖能环，或与糖另一原子上羟反应。