Update: In-person Registration now open!

Anyone who completed registration for virtual participation will have the option of converting their virtual registration to in-person participation, at an upgraded cost.Click "Edit Registration" and then enter the email address you used to register, as well as the confirmation number included in your registration confirmation email. You can then select one of the in-person registration types, and you will be charged the difference in cost on the checkout page.

To register for the 29th International Symposium on the Organic Chemistry of Sulfur, please click the "New Registration" link below.

University of Guelph's campus is tobacco- and smoke-free. We’re helping build a healthy

campus for everyone in our community.  For more information, please click here.

In order to access the University of Guelph’s campuses and University-managed facilities,

visitors must be vaccinated against COVID-19.  For more information about the University

of Guelph's COVID-19 policies, please click here.

We will inform you of any event updates via email and through the ISOCS website.