Supplier Page from Thermo Fisher Scientific for Pyridine hydrobromide perbromide, tech. 90%
1,2-Bis(2-aminophenoxy)-ethane-N,N,N'N'-tetraacetic acid, 97% from Thermo Fisher Scientific
2-Mesitylenesulfonyl chloride, 99% from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific
Methyl chloroformate, 99% from Thermo Fisher Scientific