Supplier Page from Thermo Fisher Scientific for 1,1,3,3-Tetramethylguanidine, 99%
(±)-erythro-Aleuritic acid, 95% from Thermo Fisher Scientific
4-Bromobutyric acid, 98% from Thermo Fisher Scientific
D-Sorbitol, 97% from Thermo Fisher Scientific
Imidazole, 99% from Thermo Fisher Scientific