Supplier Page from Thermo Fisher Scientific for Urea hydrogen peroxide, 1 g tablets, stabilized, contains 35 wt% H2O2
1-Heptanol, 98% from Thermo Fisher Scientific
DL-Glutamic acid monohydrate, 98+% from Thermo Fisher Scientific
Imidazole, 99% from Thermo Fisher Scientific
Sulfanilamide, 98% from Thermo Fisher Scientific