Serial numbers for Scientific WorkPlace are typically alphanumeric strings provided at the time of purchase or for trial purposes.
As of late 2021, MacKichan Software stopped selling new licenses and providing official technical support. MacKichan Software Scientific Workplace 5.5 Serial Number -
Scientific Workplace 5.5, developed by MacKichan Software, is a "mature" version of the software primarily focused on LaTeX typesetting. Because the original developer, MacKichan Software, Inc., , obtaining and managing serial numbers has changed significantly. Finding or Obtaining a Serial Number developed by MacKichan Software