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D-Tryptophan is white or white to yellowish crystalline powder at room temperature. It is odorless or slightly odorous and slightly sweet. Water solubility is 1.14g (25 ℃), soluble in dilute acid and alkali, stable in alkali, decomposed in strong acid, slightly soluble in ethanol, insoluble in chloroform and ether. It plays an important role in the growth and metabolism of human and animals. It is called the second essential amino acid However, their distribution, functions and coenzymes are diverse. Their melting point is very high, generally above 200 degrees. They are soluble in water and have the ability to absorb light in the near ultraviolet region.
As a non protein active amino acid, D-TRYPTOPHAN has special physiological properties. It can be used as non nutritive sweetener, feed additive and plant growth agent in food and feed industry and agriculture In the pharmaceutical industry, it is mainly used in the synthesis of various peptides, instead of L-tryptophan, to prolong the half-life of peptide drugs and reduce side effects, without drug resistance, and becomes an important synthetic precursor of enzyme inhibitors. It can improve the immune ability of the body and delay the occurrence of allergic reaction. Most polypeptide antibiotics can inhibit or kill Gram-positive bacteria, while others can inhibit or kill Gram-negative bacteria such as Pseudomonas aeruginosa, mycobacteria, fungi, bacteria, bacteria and tumor cells.
The side chain of semi synthetic antibiotics synthesized by D-TRYPTOPHAN plays an important role in its pharmacological function. The peptide bond is difficult to be affected by β - lactamase, so it has high stability, broad antibacterial spectrum, low toxicity, low allergy, fast absorption, high blood concentration and long duration of drug effect
Product Data Sheet
Product Name:D-Tryptophan; H-D-Trp-OH
Purity (HPLC) 99% min.
Appearance White crystals or crystalline powder
Solubility in Water Colorless & Clear (c=1)
Melting Point (DEC.) 282-285℃
Specific Rotation (20/D) +30.5-32.5 Degrees (C=1, water)
Heavy Metals(Pb) ≤10ppm
Chloride (Cl) ≤0.10%
Loss on Drying ≤0.2%
Residue on Ignition: ≤0.2%
Other amino acids ≤0.3%
Shipping & Storage
Shipping: Deliver to worldwide by Fedex / DHL for free shipping (A certain amount of order should be met)
Information attached with the products: COA analysis report
Storage condition: 4 ° C
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