Supplier Page from Thermo Fisher Scientific for Tetrabromophenolphthalein ethyl ester potassium salt
4-Aminophenylacetic acid, 98% from Thermo Fisher Scientific
D-Mannitol, 98+% from Thermo Fisher Scientific
Hexanoic acid, 99% from Thermo Fisher Scientific
Hexyl alcohol, 98%, pure from Thermo Fisher Scientific