Supplier Page from Thermo Fisher Scientific for L-Histidine, 98%
2-Mesitylenesulfonyl chloride, 99% from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific
Hydroquinone, 99% from Thermo Fisher Scientific
Sulfur trioxide pyridine complex, technical, 48-50% active SO3 from Thermo Fisher Scientific