$\mathrm{\alpha }-\mathrm{D}-$Fructofuranose is a monosaccharide. It has the six carbon atoms with six oxygen atoms and twelve hydrogen atoms. It has the five membered ring. This is an invert sugar. It has the molecular formula of ${\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6$.

Hence, the structure of $\mathrm{\alpha }-\mathrm{D}-$Fructofuranose is