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L-Tryptophan
Product Name: L-Tryptophan
CAS No.: 73-22-3
Molecule Formula:C11H12N2O2
Molecule Weight:204.23
Structure Formula
L-Tryptophan 
Description:White or primrose yellow crystalline powder, slightly bitter taste. Very soluble in formic acid, slightly soluble in water; sparingly soluble in ethanol; practically insoluble in ether.
Manufacture Standards:AJI92,USP26,EP4
Specification
Specific rotation
-30.5--32.5°
Heavy metals
≤10ppm
Water content
≤0.20%
Residue on ignition
≤0.10%
Assay
99.0-100.5%
pH
5.4-6.4
Mainly uses:
A very important amino acid it is used in food and medicine
Packing:
25kgs/ fiber drum

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