And if this hydroxyl group on the 6th carbon attacks this carbon, instead of forming our five member ring, we're going to form a six membered ring. So for deflectose, a second reaction can take place in the second reaction, not shown on the board, the hydroxyl of the six carbon. This one will react with the Ketone group carbon number two, nucleophilically, to form a five membrane ring. And this Fructose molecule is known as Fructopyrenose. So Fructose a furnace simply means five membrane ring, and Pyrenose is in this case, means six membrane. And just like we have the alpha and the beta animals, we can also form the alpha and the beta anomers of Fructopyranos.