ImageJ - and Other Health Care
Avogadro - Avogadro is a free, fantastically easy to use molecule editor.
Cortellis - Enter your description
BKchem - BKChem is a free (as in free software :o) chemical drawing program.
MBioLIMS BioBanking - Designed for BRC, Biobanks and Cohorts, MBioLIMS BioBankingยฎ software solution manages and tracks the entire life cycle of your biological samples
Gnome Chemistry Utils - The Gnome Chemistry Utils include six chemistry related programs: