Supplier Page from Thermo Fisher Scientific for (-)-Diethyl D-tartrate, 99%
D(+)-Melibiose monohydrate, 99+% from Thermo Fisher Scientific
Hydroquinone, 99% from Thermo Fisher Scientific
Melatonine, 99% from Thermo Fisher Scientific
Sulfur trioxide pyridine complex, technical, 48-50% active SO3 from Thermo Fisher Scientific