Supplier Page from Thermo Fisher Scientific for Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure
4-Fluoroaniline, 98% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific