Product: L-Tryptophan 98.5% min
Chemical name: L-Tryptophan
Cas No.:  73-22-3
EINECS No.:  200-795-6
Chemical Formula: C11H12N2O2
Purity: 98.5% min
Grade Available: Feed Grade
Appearance: White/yellow crystals or crystalline powder
Shelf Life:  24 Months
Application:  Feed Preservatives, Promote Healthy & Growth
Supply Ability:  2000ton/ month

L-Tryptophan is one of essential amino acids and the fourth limiting amino acid in animal diets, which means it could not be synthesized by the body, in addition, dietary supply through feed materials is usually insufficient.
The deficiency of L-Tryptophan was generally characterized as decreased feed intake and efficiency, and slow growth rate. Considering L-Tryptophan playing a key role in growth performance and feed efficiency, it is recommended to add L-Tryptophan in diet to achieve the optimal amino acid balance and fulfill the digestible tryptophan requirement of animals, especially piglets, sows and poultry etc.

IN 25kg/drum, Or Customized Package.
20 Tons in 20'FCL
Kept in dry, cool, and shaded place with original packaging, avoid moisture, store at room temperature. 

Tianjin Hwashin Biotechnology Co., Ltd is located in the Tianjin Jinbin industrial park, which is 30km to Beijing Daxing International Airport, 70km to Tianjin Binhai International Airport, and 100km to the Xingang port.
Since 2004, We have devoted ourselves to the research & development, production and sales of food additives, feed additives products. Currently, we have 4 business departments: Food Additives department, Feed additives department, Cosmetics materials department, Industrial and Daily Chemicals department. We have 4 productions bases in Tianjin, Hebei provice, Shandong provice and Jiangsu provice. Besides, we worked with the leading Chinese biotechnical and chemical producers, we offer more than 200 products to over 10 countries in the world. 
Hwashin team have excellent knowledge of biotechnology, chemicals and international business. Relied on a strict quality control system, through years of continuous technical innovation, the company could provide customers with first-class products and services.

1.To supply high-quality products with reasonable prices in food  additive industry.2. Research on the Market Knowledge & trend follow up and   inform customers of price trends in the market timely. Timely Deliver & Stock Promotion on hot demanding products .
3.To follow orders and arrange shipping in time , providing complete documents for Customs clearance according to different export policies in different countries.
4. Reliable & Strictly follow the contract responsibility & after sales service
5. Professional on International Logistic Service , Legalization documents & Third Party Inspection process.

Our Aim is that the goods reach the customers quickly and safely.

With the spread of the epidemic abroad,the shipping market has been greatly affected.
Nomally, most suppliers can't rent a boat and book a space.
However,it not difficult for us to solve the problem.
We have joined the local freight forwarding alliance.
It help us to get the accurate shipping information and solve the shipping problem.
And then we can help customers to make accurate decisions.

1. What are your payment terms?
Usually L/C,D/P,T/T, western union, moneygram or paypal.

2.How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3. What's your delivery time?
lt depends on order quantity, usually we will arrange shipment within 3-20 days.

4.When can I get reply?
our sales manager will contact you within 12 hours.

5. How about the validity of products?
According to the products you order, usually 2 years.

6. What documents do you provide?
Usually, we provide Commercial nvoice, Packing List, Bill of Loading and OriginCertificate,etc.
lf there are any special requirements in your market, please let us know.

7. Can l get sample before order?
Yes, we can provide free sample o nce price is agreed, and you have to pay us the delivery fee in advance. If place following order after geting free sample , we will refund the shipping cost of free sample.

8.How to start orders or make payments?
A: You can send us your Purchase order, or just send a simple confirmation by email or by Trade Manager, after  communication then we will send you Proforma Invoice with our bank details for final confirmation, then you  can make payment accordingly.