The fragmentation of Aglycone C-Di glycoside in negative ion will produced complicated ions, so for identification such compound we need fellow the behavior of the fragmented ion in term of priority,
Valentine Mbatchou The C-Glucoside flavonoids have been reported in a lot of plant families Apigenin-Glucoside one these compounds for examples: Apigenin 8-C-α-L-arabinoside 6-C-β-D-glucoside