Complex sentence: Note that the flavin group is bound to ribitol (sugar alcohol) by a carbon-nitrogen bond, not a glycosidic bond; riboflavin is thus not technically a nucleotide and the name "flavin adenine dinucleotide" is a misnomer.
Split into simpler sentences: Note that the flavin group is bound to ribitol (sugar alcohol) by a carbon-nitrogen bond, not a glycosidic bond. Thus, riboflavin is not technically a nucleotide; the name "flavin adenine dinucleotide" is a misnomer.