L-Theanine CAS 3081-61-6 is derived from tea leaves. Tea is native to eastern Asia and is a member of the Theaceae family. This evergreen shrub or tree grows to over 9 m in height and is pruned from 60 cm to 1.5 m for cultivation. Its dark green, serrated-edged leaves are alternate and oval, while its white and fragrant blossoms appear singly or in clusters.

L-Theanine has mood-modulating activity,anti-cancer,diminishing symptoms of PMS,improving learningperformance,heightening mental acuity-neurotransmitter,promoting concentration,acting antagonistically against the paralysis induced by caffeine,supporting the immune system,lowering blood pressure,increasing brain dopamine levels among others.

Specification
Appearance                             White crystalline powder
Specific rotation(a)D20            (C=1 , H2O ) +7.7°to +8.5°
Solubility (1.0g/20ml H2O)       Clear Colorless
Melting Point (℃)                     211-216 ℃
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 ¡æ 3h)      Not more than 0.50%
Residue on ignition                  Not more than 0.2%
Assay                                       98.0%-102.0%
PH                                            5.0~6.0

Usage

·Pharmaceutical raw materials

·Food and Drink for health care

·Food additive

Packing

25kg/fiber drum or 25kg/bag

Storage

Placed in sealed container and kept in a cool and dry place.

Avoid strong vibration,insolation,high temperature,smoke and fire.

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