L-alanine Cas no.: 56-41-7 App: white and odorless crystal powder with special sweet tasle Assay 99.0-101.0% Transmittance fª98.0% Specific rotation[]20d +14.3~ +15.2 Loss on drying f_ 0.20% Chloride(cl) f_ 0.020% Ammonium (nh4) f_ 0.02% Sulfate (so4) f_ 0.020% Iron (fe) f_ 10ppm Heavy metals (pb) f_ 10ppm Arsenic (as2o3) f_ 1ppm Residue on ignition f_ 0.10% Ph 5.7 ~ 6.7 Other amino acids not detectable Packing: 25kg multiply bag