Supplier Page from Thermo Fisher Scientific for 2-Mercaptopyridine-N-oxide, sodium salt, 40 w/w % aqueous solution
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl picolinate, 99% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific