Supplier Page from Thermo Fisher Scientific for Thiourea, 99+%, for analysis
Acetophenone, 98%, pure from Thermo Fisher Scientific
Dulcitol, 99+% from Thermo Fisher Scientific
L(+)-Histidine methyl ester dihydrochloride, 97% from Thermo Fisher Scientific
Phenylselenol, 98% from Thermo Fisher Scientific