Supplier Page from Thermo Fisher Scientific for 2,3-Pyrazinedicarboxylic anhydride, 97%
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
9-Fluorenone, 99+% from Thermo Fisher Scientific
Ethyl bromopyruvate, 80-85% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific