 L series amino acid--- --- L-Methionine  L-Threonine L-Tryptophan
L-Lysine hydrochloride L-Valine
 L-Tryptophan
Alias： amino indopropionic acid
CAS NO ： 73-22-3
Molecular formula： C11H12N2O2
Molecular weight： 204.23
Product standard： AJI-92 Version， USP-24/26 Version， FCC-4 Version
Property： White or a kind of white to yellowish crystalline powder, smell-less or slight smelly, L- type has the bitter taste, the
DL- and the D- type have little sweet taste. 289 °C decompounds,
slightly soluble in water, does not dissolve in the ethyl alcohol;
Dissolves in the diluted acid or the diluted alkali, the long time
illumination will color up; heat together with water can produce the water a small amount of indole, like when heat up under the sodium hydroxide, the cupric sulfate existence, then will produce massive indole; heats up with the acid in the hidden place will be more stable; when coexist with Medicine bulk drugs, carbohydrate,
and aldehyde, it is extremely easy to decompose.
Use： Tryptophan is heterocyclic amino acid, is a kind of important and necessary amino acids for human body. It is widely applied in pharmaceutical and food fields. |
