Supplier Page from Thermo Fisher Scientific for 6-Cyano-7-nitro-1,4-dihydroquinoxaline-2,3-dione, 98%
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
9-Fluorenone, 99+% from Thermo Fisher Scientific
Ethylene carbonate, 99+% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific