Supplier Page from Thermo Fisher Scientific for 1-Tetrahydropyran-4-yl-1H-pyrazol-4-ylamine, 97%
Ethyl butyrylacetate, 98% from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific