Solubility 0.1% (EtOH).....................................................................................Clear golden yellow solution
Absorptivity 1%, 1cm,
(pH 6.5) at λmax.431.0 nm...........................................................................600 – 700
(pH 8.2) at λmax.558.0 nm............................................................................1100 – 1200
Loss on drying at 110C (1hr)......................................................................... <1%
