Factory Supply High Quality D-Tryptophan CAS No. 153-94-6

What is D(+)-Tryptophan ?

D(+)-Tryptophan is an organic chemical with the chemical formula C11H12N2O2, which is a white or yellow crystalline powder. It is also occasionally found in natural peptides, such as marine toxic peptides. It is an important nutritional agent and is used as a preventive and therapeutic agent for leprosy in medicine.

1. Are you manufacturer or trading company?
· We are a manufacturer in China, also cooperate with other suppliers, integrating industry and trade.
· We have many domestic and foreign supply channels, in order to meet a large number of client needs.

2. How long have you been engaged in export trade?
· For a long time, our main market has been in China. In order to meet the requirements of foreign customers, we recently established an export department.
· We also hope that our products can enjoy a reputation abroad, and hope to make more friends with foreign customers.

3. What are your payment terms?
· Available TT, LC, Paypal, Credit Card etc., can be negotiated.

4. What is the delivery time?
· Usually about 7-15 days, depends on quantity and products.

5. What certifications do you provide?
· Approval ISO, CE certifications. · Provide COA, MSDS reports.