Supplier Page from Thermo Fisher Scientific for Potassium hydrogen sulfate, fused, ACS, mixture of potassium pyrosulfate, K{2}S{2}O{7}, and potassium bisulfate, KHSO{4}
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
2-Fluorobenzaldehyde, 97% from Thermo Fisher Scientific
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure from Thermo Fisher Scientific