Supplier Page from Thermo Fisher Scientific for 4-Nitrophenyl sulfate, potassium salt, 99+%
1-Fluoro-2-nitrobenzene, 99% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific