Reaction Login

Click here to login to the online ordering system


Who do I contact to gain access to Reaction? 

Send an email to You should include your name, netID, and reason for needing access. If you are a student, please indicate your faculty research group. New SCS faculty and staff are typically added per request of their department, upon hire. 

Can I access this system off-campus?

Yes. However, you will need to use a VPN client to do so. Consult SCS Computing (email: if you have questions about installing a VPN client.


I am away from my computer and need to approve an order. What do I do?

Contact the SCS Business Office (call 217-333-1235 or send an email to With your authorization, the order can be approved by the Business Office staff. 

How do I change/update my delivery address?

Login to the system. In the shaded "Welcome" area at the top of your screen, select "Update your information".


How do I learn what the alias/index code is for my account(s)?

Login to the system. From the left menu tree, select CORE. Next select "Manage My CFOPAs". Your alias/index code is listed in the 2nd column. This is a 6-digit code assigned by campus when your CFOP is set up as a shorter way to identify your CFOP. 

I am a PI or a responsible approver on an account. What is a 'group' and how do I create one?

As a faculty member or supervisor, setting up a group in Reaction is the simplest way for you to be able to manage all orders for your employees/group members. 

To set up a group, login to the system. From the menu tree at the left, select USER. Next select, GROUPS. Follow the link at the bottom of the page to "Create a group". After you create the group, you can add members by selecting the "Members" option on the right side of the screen. You will need to enter each member's netID and then select "Save". If you need assistance setting up a group or adding members, contact


How do I see orders for others in my group?

Login to the system. From the menu tree at the left, select PROCUREMENT. Next select FIND PURCHASE REQUESTS. From this screen select "Show all purchase requests for my group".

What do I do if I need to set up a standing purchase order? 

Michelle Davis handles the set up and monitoring of all Standing Purchase Orders that will be issued on SCS, Chemistry, or ChBE accounts. Contact her at or 300-3376 with questions or to set up an order. These are currently not housed in the Reaction system.