L-Tryptophan
L-Tryptophan is one of the popular food/feed additives and ingredients in most countries. As a professional L-Tryptophan supplier, please be assured to buy L-Tryptophan at Nispoon. Any inquiries and problems, please feel free to send emails to us via viola@nispoon.com or limjianfeng@nispoon.com, we will reply you within 1 working day.
Table of Contents
Nispoon™ L-Tryptophan
- Type | Amino Acids
- CAS No. | 73-22-3
- Qty in 20′ FCL | 20MT
- Min. Order | 50KG
- Packaging | 25KG/BAGS
DESCRIPTION
Tryptophan (IUPAC-IUBMB abbreviation: Trp or W; IUPACabbreviation: L-Trp or D-Trp; sold for medical use as Tryptan) is one of the 22standard amino acids and an essential amino acid in the human diet, asdemonstrated by its growth effects on rats. It is encoded in the standardgenetic code as the codon UGG. Only the L-stereoisomer of tryptophan is used instructural or enzyme proteins, but the R-stereoisomer is occasionally found innaturally produced peptides (for example, the marine venom peptide contryphan). The distinguishing structural characteristic of trytophan is that it containsan indole functional group.
There is evidence that blood tryptophan levels are unlikely to be altered by changing the diet, but for some time, tryptophan has been available in health foodstores as a dietary supplement.
Clinical research has shown mixed results with respect to tryptophan’s effectiveness as a sleep aid, especially in normal patients. Tryptophan has shown some effectiveness for treatment of a variety of other conditions typically associated with low serotonin levels in the brain. In particular, tryptophan shown some promise as an antidepressant alone and as an “augmenter” of antidepressant drugs. However, the reliability of these clinical trials has been questioned because of lack of formal controland repeatability. In addition, tryptophan itself may not be useful in the treatment of depression or other serotonin-dependent moods, but may be useful in understanding the chemical pathways that will give new research directions for pharmaceuticals.
SPECIFICATION
ITEMS | STANDARD |
Appearance | White crystals or crystalline powder |
Assay | 98% Min |
Specific rotation | -29°~-32.3° |
Loss on Drying | 0.5% Max |
Heavy Metals | 20mg/kg Max |
Assenic (as2O3) | 2mg/kg Max |
Residue on Ignition | 0.5% Max |
FAQ
1, What kinds of certificates can you offer?
As for L-Tryptophan, we can offer HAPPC, KOSHER, HALAL Certificates, ect.
2, Is Nispoon a manufacturer or just a trading company?
Nispoon is a trading company, but we can provide you products with good quality and good price as the manufacturer.
3, What is the Min Order Quantity of L-Tryptophan?
Different products have different MOQ, for L-Tryptophan, the MOQ is 500kg.
4, What is the price of L-Tryptophan?
Nispoon is a supplier of L-Tryptophan in China, and has been corporate with many L-Tryptophan suppliers, we can provide you with cost-effective L-Tryptophan.
5, How long shall we wait for your reply?
We can guarantee to reply your inquiries of L-Tryptophan in less than 24 hours in working days.
6, What kinds of transportation types can you provide?
Our main transportation methods include air transportation, land transportation and water transportation.
7, What kinds of payment terms can you accept?
The most commonly used payment terms are T/T, L/C, D/P, etc.
8, How long will I receive my good?
When your purchase order has been confirmed, inventory products will deliver within 2 weeks, other products delivery in 4 weeks.