Supplier Page from Thermo Fisher Scientific for 3,4-Dihydroxy-3-cyclobutene-1,2-dione, 99%
4-Fluoroanisole, 99% from Thermo Fisher Scientific
Ethyl 2-hydroxyethyl sulfide, 98% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific