Certificates/Standards: | N; |
Monthly Output: | Not provided |
Regional: | Not provided |
Packaging Information: | Not provided |
Mode Of Payment: | Not provided |
Delivery Lead Time: | Not provided |
Main Sales Markets: | North America,Central/South America,Western Europe,Eastern Europe,Australasia,Asia,Middle East,Africa |
Sample Provided: | No |
Sample Policy: | Not provided |
Minimum Quantity: | Not provided |
【Product Name】L-Theanine
【English Name】L-Theanine; N-(Y-glutamyl) ethylamine
【CAS Number】3081-61-6
【Product Standard】AJI92/USP24
【Product Specification】99%
【Solubility】Insoluble in ethanol and ether, soluble in water.
【Preparation Source】Exists in green tea. Preparation method: Pyrrolidone carboxylic acid is produced by high-pressure heating of L-glutamic acid, followed by the addition of anhydrous monoethylamine and high-pressure heating.
【Properties】White crystalline powder. Melting point 217-218℃ (decomposition). Soluble in water, insoluble in ethanol and ether. Odorless, with a slightly sweet unique taste, taste threshold of 0.15%. It is abundantly found in high-quality green tea (up to 2.2%).
【Storage】Store in a cool, dry, light-protected, and high-temperature-avoiding environment.
【Packaging】1kg/double-layer plastic sealed bag packaging, 25kg/cardboard drum (with double-layer plastic bags inside and a cardboard drum outside).
【Shelf Life】24 months