Supplier Page from Thermo Fisher Scientific for Lithium metaborate, Puratronic:r, 99.997% (metals basis)
Ethyl bromopyruvate, 80-85% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific