Den Kombinerede Nomenklatur (KN), v1:2017
2933 99 20: Indol, 3-methylindol "skatol", 6-allyl-6,7-dihydro-5H-dibenz[c,e]azepin "azapetin", phenindamin "INN" samt salte deraf og imipraminhydrochlorid "INNM"
https://www.dst.dk/da/Statistik/dokumentation/nomenklaturer/kn?id=a17d76f9-9c42-4b62-a4fd-38baf7105f82