keto-D-fructose 6-phosphate => D-allulose 6-phosphate
keto-d-fructose 6-phosphate => d-allulose 6-phosphate
keto-D-fructose 6-phosphate => D-allulose 6-phosphate
keto-d-fructose 6-phosphate => d-allulose 6-phosphate