label: N-(2-(2-hydroxyethoxy)ethyl)-N'-(2-(N,N-dimethylamino)ethyl)-1,4,5,8-naphthalenetetracarboxylic diimide
label_lc: n-(2-(2-hydroxyethoxy)ethyl)-n'-(2-(n,n-dimethylamino)ethyl)-1,4,5,8-naphthalenetetracarboxylic diimide