What is 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzene-1-sulfonyl chloride ?

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.