Supplier Page from Thermo Fisher Scientific for Dimethylammonium-dimethylcarbamate, ratio carbon dioxide/dimethylamine <2:1
D-Cystine, 98% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Inosine, 99% from Thermo Fisher Scientific