Even if you have a perpetual license for 15.0, it may have been removed from the official Download Center as part of software divestitures. Summary of Versions
Widely used in professional labs and has a robust free version for non-commercial use. Chemdraw Professional 15.0 Free Download
Once you have obtained the installer file (typically an .exe for Windows or .dmg for Mac), follow these steps: How To Install ChemDraw Professional 15 | PDF - Scribd Even if you have a perpetual license for 15
When you download ChemDraw Professional 15.0, you gain access to a robust set of features designed to speed up the research process: Chemdraw Professional 15.0 Free Download