Supplier Page from Thermo Fisher Scientific for Nickel lump, vacuum remelted, low Oxygen, 99.97% (metals basis)
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, 99%, pure from Thermo Fisher Scientific