Fructose is a six-carbon chemical compound with the molecular symbol C6H12O6. Fructose can be of two types based on the position of the -OH group. These are D and L fructose. If the -OH group on the 5th carbon of fructose is on the right side, it is called dextrorotatory or D fructose and if the -OH group on the 5th carbon of fructose is on the left side, it is called Laevorotatory or L fructose. Dr. Siddiq Publications