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L-Theanine 3081-61-6
2017/9/8 ~ 2017/9/22
Description
Product name:L-Theanine
CAS NO.:3081-61-6
Appearance: White crystalline powder
Specific rotation(a)D20
(C=1 , H2O ): +7.7o to +8.5o
Solubility (1.0g/20ml H2O): Clear Colorless
Melting Point (oC): 211-216 oC
Chloride(C1): Not more than 0.02%
Iron(Fe): Not more than 10ppm
Heavy metals( Pb ): Not more than 10ppm
Arsenic(As2O3 ): Not more than 4ppm
Loss on drying( 100 ??3h): Not more than 0.50%
Residue on ignition: Not more than 0.2%
Assay: 98.0-102.0%
PH: 5.0~6.0
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