Supplier Page from Thermo Fisher Scientific for Quinine, anhydrous, 99% (total base), may cont. up to 5% dihydroquinine
Eicosanoic acid, 98% from Thermo Fisher Scientific
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethylmercurithiosalicylic acid, sodium salt, 97.0-101.0% from Thermo Fisher Scientific