Supplier Page from Thermo Fisher Scientific for Thiophene-2-thiol, contains dimer, 97% as monomer
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyl bromopyruvate, 80-85% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific