Announcement for existing TCI My Account users; please reregister as new user to create online quotation. Thank you so much.
Maintenance Notice (21:00 - 22:00 July 21, 2020): Structure Search functions is scheduled to be unavailable due to maintenance. We appreciate your patience and understanding.
TCI uses Marvin JS for quick and convenient drawing of chemical structures as well as reactions/reaction mechanisms. Start by either importing your file or selecting the drawing tools and drawing your structural formula. You can also refine your search using the fields to the right.