text: When each of the pair of substituents on the pendant group nitrogens are toluyl, the solubility in water at 20° is about 9.5% w/w giving bright greenish-blue solutions; and relative solubilities are: 6.0 in absolute ethanol, 6.0 in Cellosolve and 3.25 ethylene glycol, whereas it is practically insoluble in xylene.