Supplier Page from Thermo Fisher Scientific for 1-Propylphosphonic acid cyclic anhydride, 50+% w/w soln. in acetonitrile
2,6-Lutidine, 99% from Thermo Fisher Scientific
2-Mercaptobenzothiazole, 95% from Thermo Fisher Scientific
Diethyl carbonate, 99% from Thermo Fisher Scientific
Melatonine, 99% from Thermo Fisher Scientific