Supplier Page from Thermo Fisher Scientific for Xanthine monosodium salt monohydrate, 96+% (dry basis), Thermo Scientific
2-Mesitylenesulfonyl chloride, 99% from Thermo Fisher Scientific
Ethyl cyanoformate, 99% from Thermo Fisher Scientific
Itaconic acid, 99+% from Thermo Fisher Scientific
Sulfanilamide, 98% from Thermo Fisher Scientific