Supplier Page from Thermo Fisher Scientific for Methyl 4-cyano-5-(methylthio)thiophene-2-carboxylate, 97%
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific