
1 Product name: L-Tryptophan
2. CAS No.: 73-22-3
3. Specification: CP2010 EP5 AJI92 USP24
4. White crystals or crystalline powder
5 Function:
Ltyrosine, through its effect on neurotransmitters, is used to treat conditions including mood enhancement, appetite suppression
6 Deliver time: Within 2 days for small quantity
7 Package: Sealed export grade drum & double of sealed plastic bag
Tryptophan is an essential amino acid for young animal's growth.
It is effective when used for increasing the feed intake, reducing stress, promote sleeping and growing; it can also reduce the quantity of high quality protein in diary ration to lower the cost of feed.
Hebei Huanwei Biotech Co.,Ltd was established in 2016 and located in Shijiazhuang, Hebei Province, China. Our advantage raw material products are widely used in pharmaceutical and food industry, such as Vitamins,Nutritional Ingredients, Food Additives,Dietary Supplements, Amino Acid, APIs and so on. Besides, we supply OEM/ODM products of Dietary-supplement, including Softgel, Tablet, Hard Capsule, Functional Beverage, Gummy and others.
Huanwei Biotech has obtained the certification of ISO9001, ISO14001, ISO45001 and have been awarded Ecovadis Bronze Medal in 2023. At present we have been supplying products and services to customers in more than 20 countries in Europe, North America, South America, Africa, Southeast Asia, etc.



Q1: Are you a factory or a trading company?
A1: We are a trading company which built in 2016, our main sales staff have many years industry experience.
Q2: How do you control the quality?
A2:
1. We only select high-quality material from famous manufacturers.
2. We have a standardized production process with traceable records
3. We're certified by ISO9001 and ISO22000 Quality management system.
Q3: Can I get samples?
A3: Yes, we can supply specified quantity free sample, you pay for the freight charge only.
Q4: Which documents can you provide?
A4: We can supply Commercial Invoice, Packing List, Country of Origin, Insurance Policy, Bill of loading, COA, MSDS, and so on.
Q5: What Payment terms do you accept?
A5: T/T, L/C, D/P etc.