L-Theanine, Theanine, Green tea Theanine
Other names: N-Ethyl-L-glutamine; L-Glutamic acid gamma-(ethylamide)
CAS No.: 3081-61-6
Molecular forula: C7H14N2O3
Type: Green Tea Extract Powder
Part Uses: Leaf
Molecular Weight: 174.20
Specification:
20% 30% 40%(Extract from green tea)
99%（Fermentation）
Analysis Items | Specifications | Test Method |
| Appearance | dark brown powder | Visual |
| Green Tea Theanine | 20.0% Min. | HPLC |
| Caffeine | 3.0% Max. | HPLC |
| Moisture | 8.0%Max. | GB5009.3 |
| Ash | 15.0%Max. | GB5009.4 |
| Particle size | ≥95%through 80 Mesh | CP2010 |
| Heavy Metals | 10ppm Max. | GB/T5009.74 |
| Lead | 5ppm Max. | GB5009.12 |
| Arsenic | 2ppm Max. | GB/T5009.11 |
| Total plate count | 1,000 cfu/g Max. | GB4789.2 |
| Yeast & Mold | 100cfu/g Max. | GB4789.15 |
| Coliform | 10cfu/g Max. | GB4789.3 |
| Salmonella | Negative | GB4789.4 |
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