ORDERING GUIDE

Online purchase process:

1. Register and log in: Register to become a member of this site, log in to the website

2. Search for products: You can search for products by entering the CAS number and article number

3. Add to cart: Select satisfactory products to add to cart

4. Submit the order: fill in the receiving information, invoice information and so on to confirm the order

5. Payment: Choose offline payment or online payment

6. Order status: Member Center can check the order processing status at any time

Offline purchase process：

1. You can dial the service hotline: 400-8917-176, or directly contact the website customer service QQ (suspended on the right side of the page)

2. Customer service will provide customers with order and payment information in the first time

3. After the order is confirmed and the payment is completed, we will send the goods to the customer

4. The invoice will not be sent with the goods, and will be sent to the customer by express after 5-10 working days.