Supplier Page from Thermo Fisher Scientific for 1,4,8,11-Tetramethyl-1,4,8,11-tetraazacyclotetradecane
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl butyrylacetate, 98% from Thermo Fisher Scientific
Ethyl picolinate, 99% from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific