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 name /CAS/ product number/structural formula

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 online payment method

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

7. If you have any questions, please call the subscription hotline directly

Offline purchase process:

1. You can call the order hotline 400-000-2637

2. Customer service will provide product consultation, pre-sales and after-sales service in the first time

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