氨基酸（L-theanine)

About L-theanine: Name:L-theanine CAS:3081-61-6 Molecular:C7H14N2O3 Residue on ignition:≤0.2% Chloride:≤0.05% Loss on drying:≤0.5% Heavy metal(Pb): ≤10ppm Arsenic:≤4ppm Ph:5.0-6.5 Melting point:202-215°C MW:174.2 Purity:99%min L-theanine (Y-glutamylcthylamide) is a unique Amino Acid present almost exclusively in the tea plant . New Production methods: Bio-Enzymatic The comparision of L-theanine through the process enzyme synthesis with through the process of chemical synthesisL-Theanine through the process of microbe ferment is all L type,because of special and distinctive effect of microbe enzyme.Specific Rotation [α]20/D of our product is +8.2-+8.3degreeDuring the process of microbe ferment,we do not add any chemistry reagent .The raw material of production are L-Glutamine and ethylamine.so do not worry about the safety of our product.All the raw materials of our product are food grade.