Supplier Page from Thermo Fisher Scientific for µa-Naphtholphthalein
8-Hydroxyquinoline, ACS reagent from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific
Oxytetracycline dihydrate, 95% from Thermo Fisher Scientific
Sulfur trioxide pyridine complex, technical, 48-50% active SO3 from Thermo Fisher Scientific