1. Product advantages

♦ High purity, all above 98.5%, no impurities after dissolution

♦ We will test each batch to ensure quality

♦ OEM and private brand services designed for free

♦ Various cap colors available

♦ We can also provide MT1 peptide powder

2. Factory advantages

♦ Professional research team

♦ More than 5 doctors in high-tech R&D laboratories

♦ More than 1000 m2 of factory production line to ensure stable supply

♦ More than 1200 factories to manufacture products and control quality

3. Service advantages

♦ 24-hour online service

♦ Track package information and update it for customers

♦ Professional sales team

♦ Accept small order service

♦ Redelivery service if detained by customs

D-tryptophan is white to slightly yellow powder.

Density 1.4± 0.1g /cm3

Boiling point 447.9±35.0 °C at 760 mmHg

Melting point 282-285ºC

Molecular formula C11H12N2O2

Molecular weight 204.225

Flash point 224.7±25.9 °C

Accurate mass 204.089874

PSA 79.11000

LogP is 1.04

Application:

As a non-protein active amino acid, D-tryptophan has special physiological properties. It can be used as non-nutritional sweetener, feed additive and plant growth agent in food and feed industry and agriculture. In the pharmaceutical industry, D-tryptophan is mainly used to synthesize various peptides to replace L-tryptophan and prolong the half-life of peptide drugs and reduce side effects. Do not develop resistance and become an important synthetic precursor of enzyme inhibitors. It can improve the immune ability of the body and delay the occurrence of anaphylaxis. Most Chemicalbook polypeptide antibiotics can resist gram-positive bacteria, but some have good inhibition or killing effect on gram-negative bacteria such as pseudomonas aeruginosa, mycobacterium, fungus, pathogen, and tumor cells. Synthesis of semi-synthetic antibiotics with D-tryptophan, its side chain plays an important role in its pharmacological function, peptide bond is difficult to be affected by β-endonacylase, so as to have a high stability, and has a wide antibacterial spectrum, low toxicity, hypoallergenic absorption, high blood concentration, drug power of long duration and so on.

Package:

Delivery:

Our company has long-term cooperation with many world-famous logistics companies to ensure transportation efficiency and cargo safety. 

FAQ:

1. How do you control the quality   
Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.   

2.  How long is lead time  
We deliver goods within 3 days for small order, 7-10 days for bulk order.   

3.  Can I get some samples 
 Yes, we can supply free sample, but the shipping cost be paid by our customers. 

4.  How long is lead time

We deliver goods within 3 days for small order, 7-10 days for bulk order.