If you are looking for your official serial number or need to activate the software in 2021 or later, here is the authorized process for retrieving it. How to Retrieve Your Official Serial Number
If you're experiencing difficulties obtaining a valid serial number, consider the following:
ChemDraw is now developed and sold by Revvity Signals (formerly PerkinElmer Informatics). You can buy individual academic, corporate, or government licenses through their website or authorized resellers.
If you need help finding the official download page or understanding license options, I can guide you further.
Revvity Signals typically offers a time‑limited trial of ChemOffice Professional. Visit their official website to request a trial.