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The Executive Committee of the Division of Organic Chemistry of the American Chemical Society and the Rensselaer Polytechnic Institute (RPI) Department of Chemistry invite you to attend the 49th National Organic Chemistry Symposium (NOS). This will be the 100 year anniversary of the NOS, and we are pleased to have the conference return to its roots (5 of the first 10 NOS were in New York or New England). This biennial event will be held from Sunday June 22 to Thursday June 26, 2025 at RPI in Troy, New York. You can find some of the latest information on the upcoming NOS on Twitter #NOS2025.

The 49th NOS will be chaired by Ed Fenlon (Franklin & Marshall College) and Christopher Cioffi (Rensselaer Polytechnic Institute). The NOS 2025 location was selected in part based on the strength and enthusiasm of the local organizers.

Several NOS lectures from the 2013–2023 are currently available to Organic Division members. See the Organic Division’s Main web site. The program books from all previous NOS are available from the NOS History page .

The DOC is committed to fighting racism and implicit bias. Racism, bias and hate have no place in the DOC, the ACS, in science, or anywhere. The ACS provides resources for Diversity, Inclusion and Respect. Anti-racism work requires sustained, proactive education and engagement as well as systemic, intentional efforts at micro- and macro-levels.  A recent article entitled “Organic Chemistry: A Call to Action for Diversity and Inclusion” highlights some advice for how we as individuals and as a community can take action. Additionally, the DOC has Adopted an Anti-Harassment Policy.

The National Organic Chemistry Symposium is the premier event sponsored by the Division of Organic Chemistry to highlight recent advances in organic chemistry, and provides a breadth of programming and opportunities that you won’t want to miss. Please plan to join us in 2025!