乙酰缬氨酸 aji92

AppearanceWhite crystals or crystalline powderSpecific rotation[α]20/D

(C=1 Acetic acid)+9.3°+ 2°Melting point 159 to 168℃Heavy metal(Pb)Not more than 20ppmArsenic (As2O3)Not more than 2ppmLoss on DryingNot more than 0.50%Residue on ignitionNot more than 0.30%Assay98.0% to 102%