TERMODYNAMISKE DATA: https://webbook.nist.gov/chemistry/
NMR SPEKTRA DATABASE: https://sdbs.db.aist.go.jp/sdbs/cgi-bin/direct_frame_top.cgi
IUPAC HJEMMESIDE: https://iupac.org/
EMU'EN (manualer til programmerne: ChemSketch (ACD Labs) og MarvinSketch (ChemAxon). https://emu.dk/stx/kemi