Figure 1
From: Thermodynamic, kinetic, and isotherm studies of Direct Blue 86 dye absorption by cellulose hydrogel

DB86 dye structure (MF: C32H14CuN8Na2O6S2) (MW: 780.17 g/mol) (C.I.74180) (Acid blue 87, Direct fast turquoise blue GL, Dragon Blue DBL 86) (CAS number: 1330–38-7).