INT dissolves in water to give a clear light yellow to light green solution at 4 mg/mL, although gentle heat and
sonication are necessary for this concentration. INT dissolves up to 8 mg/mL in ethanol, and up to 30 mg/mL in
ethylene glycol monomethyl ether. Aqueous solutions are 3
reported to be stable for several weeks when stored at 2-
8°C in the dark.4
A 50 mg/mL solution in hot methanol/water (1:1) is clear and very deep yellow.2