| ≥1 piece |
l-tryptophan is a natural anti-depressant, plentiful in protein foods but largely lost through cooking and processing. L-Tryptop
Synonyms: L(-)-Tryptophan; (S)-2-Amino-3-(1H-indol-3-yl)propanoic acid; L-alphs-Amino-3-indolepropionic acid; Indole-3-alanine; Trp
Molecular Formula: C 11 H 12 N 2 O 2
Molecular Weight: 204.23
CAS Number: 73-22-3
EINECS: 200-795-6
L-Tryptophan is a precursor for the mood-regulating serotonin the brain neurotransmitter linked with pleasure and fulfilment. L-Tryptophan's is used to alleviate depression, support alcohol withdrawal and to aid weight loss. L-Tryptophan plays an important role in our diets, and aging individuals are often in need of it as a supplement.
Tryptophan is a kind of 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.
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.
Specification
| Product name | L-Tryptophan |
| Test Items | Specifications (USP24) |
| Appearance | Off-white crystals |
| Assay | 98.5-101.5% |
| Specific rotation | -29.4° to -32.8° |
| pH | 5.5-7.0 |
| Loss on drying | 0.3% Max |
| Residue ignition | 0.1% Max |
| Chloride | 0.05% Max |
| Ammonium | 0.02% Max |
| Sulfate | 0.03% Max |
| Iron | 30ppm Max |
| Heavy metals | 15ppm Max |
Package: 25kgs per drum.
Storage: Stored in a dry and cool place, keep away from strong light and heat.
Shelf life: Two years when stored properly in a well-closed container.