Supplier Page from Thermo Fisher Scientific for N,N,N',N'-Tetramethyl-O-(4-oxo-3,4-dihydro-1,2,3-benzotriazin-3-yl)uronium tetrafluoroborate, 98+%
2-Fluorobenzaldehyde, 97% from Thermo Fisher Scientific
4-Ethylaniline, 99+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific