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Lambda max. :660.0 to 664.0 nm(H2O)
Lambda max.2: 620.0 to 624.0 nm(H2O)
Absorbance(E1%1cm) :min. 210(H2O, 660.0 to 664.0 nm)(calcd.on dried substance)
Absorbance(E1%1cm)2 :min. 250(H2O, 620.0 to 624.0 nm)(calcd.on dried substance)
Drying loss :max. 6.0 %