Supplier Page from Thermo Fisher Scientific for Pyridine hydrobromide perbromide, tech. 90%
Dicalite® speed plus, Diatomaceous filter-aid from Thermo Fisher Scientific
Hexyl alcohol, 98%, pure from Thermo Fisher Scientific
Sebacic acid, 98% from Thermo Fisher Scientific
Semicarbazide hydrochloride, 99+% from Thermo Fisher Scientific