Supplier Page from Thermo Fisher Scientific for Nickel tungsten oxide, 99.9% (metals basis excluding Co), Co <100ppm
2-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
DL-Ethyl 2-bromopropionate, 99% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, 99+% from Thermo Fisher Scientific